math colloquium
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enMath Colloquium 2017
http://news.sonoma.edu/article/math-colloquium-2017
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<div class="field-item even"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2017-08-24T00:00:00-07:00">August 24, 2017</span></div>
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<div class="field-item even" property="content:encoded"><p>In addition to topics like math's role in watershed sustainability and the math in topology, Sonoma State University's Math Colloquium features lectures by three Sonoma State University alumni: Aaron Donahue, Greg Morre and Jessica Balli. Lectures are on Wednesdays at 4 p.m. in Darwin 103. Admission is free, parking is $5-$8 on campus. For more information or changes in schedule visit the math department. </p>
<h3>Schedule of Math Colloquium Dates </h3>
<p><em>Aug. 30</em></p>
<h3>Mathematical Representations of Tropical Trees and Implications for Ecology</h3>
<p><em>Lisa Bentley, Biology Department, Sonoma State University</em></p>
<p>The variety of tropical tree forms underlies the structure and function of tropical forests. While a descriptive basis exists to explain tree form, quantitative descriptions linked to mechanistic processes are lacking. This talk will discuss advances, gaps, and future directions in developing mathematical representations of tropical trees. The talk will also include the implications for using these models to understand of the fates of trees and forests under a changing climate and anthropogenic pressure.</p>
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<p><em>Sept. 6</em></p>
<h3>Mathematics for Watershed Sustainability</h3>
<p><em>Martha Shott, Mathematics and Statistics Department, Sonoma State University</em></p>
<p>The practices of estimation and math modeling can be powerful tools toward managing valuable environmental resources. In this talk, Martha Shott discusses how fundamental mathematical concepts are integrated into SSU’s interdisciplinary freshman learning course Science 120: A Watershed Year. These mathematical principles can deepen the understanding of the surrounding Russian River watershed, improve the approach to promoting the health of this environment, and assist in solving relevant problems in resource management and sustainability.</p>
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<p><em>Sept. 13</em></p>
<h3>Computational Applications in Hurricane and Climate Modeling</h3>
<p><em>Aaron Donahue, Lawrence Livermore National Labs</em></p>
<p>In late August 2012, a group of computational scientists were hunkered down writing a report that determined how the city and the state would prepare and respond to the approaching Hurricane Isaac landing along the Louisiana coastline. Running complex computational models on large high-performance computing clusters, scientists were able to predict where the storm will be the most destructive and more importantly find the extent of flooding due to storm surge. The unspoken heroes, working behind the scenes, are the differential equations that make it all work. Donahue's lecture will discuss the development and application of computational models. From a purely mathematical theory to execution to real world phenomenon on high performance computing platforms; with a particular focus on hurricane storm surge modeling and climate prediction.</p>
<p> </p>
<p><em>Sept. 20</em></p>
<h3>Analysis of Cancer Genomic Data Using Computational Algebraic Topology</h3>
<p><em>Javier Arsuaga, University of California, Davis</em></p>
<p>Genomic technologies measure thousands of molecular signals with the goal of understanding essential biological processes. In cancer these molecular signals have been used to characterize disease subtypes, cancer pathways as well as subsets of patients with specific prognostic factors. This large amount of information however is so complex that new mathematical methods are required for further analyses. Computational homology provides such a method. Scientists have developed a new homology based supervised method that identifies significant copy number changes in the tumor genome. This method associates a set of point clouds to any given profile and uses β0 of the surfaces to detect frequent copy number changes and β1to further analyze the structure of the copy number changes. Professor Javier Arsuaga's team applied this method to a set of breast cancer patients with known molecular subtype. The analysis using β0 confirmed previously reported copy number changes and found three new significant changes in the basal subtype: 1p, 2p and 14q. The analysis using β1identified multiple co-occurring amplifications. Professor Arsuaga will discuss those related with the ERBB2/HER2 subtype (17q12, 17q21.2 and 17q21.33). The talk will also discuss possible extensions of this approach.<em> </em></p>
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<p><em>Sept. 27</em></p>
<h3>Reasoning and Proofs in School Mathematics</h3>
<p><em>Jeong-Lim Chae, Sonoma State University</em></p>
<p>Communities of mathematics education agree that reasoning and proofs are essential aspects of school mathematics, but many students still remember that their mathematics learning was memorizing unrelated formulas and regurgitating answers to given problems. Some argue that mathematics beyond basic operations is useless in real life and mathematics should not be required for all students. In this talk, Professor Jeong-Lim Chae will discuss how reasoning skills progress toward proofs in school mathematics and how to integrate mathematical proofs in teaching without the burden of formality and rigors. The role of teachers in promoting reasoning and proofs so that their students can understanding mathematics better will also be discussed. </p>
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<p><em>Oct. 4</em></p>
<h3>Euler’s formula and the Birth of Topology</h3>
<p><em>Maia Averett, Mills College</em></p>
<p>In this talk, Professor Maia Averett llustrates the underlying philosophy and goals of algebraic topology by looking at a specific example in its historical context. Euler’s polyhedral formula is often considered to be one of the first theorems of algebraic topology and its underlying idea gave birth to the philosophy that drives algebraic topology. Averett will explain in broad terms what the goals of topology and it's history to place Euler’s formula in its appropriate context. The lecture will explore and generalize Euler’s formula to study two-dimensional objects called surfaces. This talk is intended to be accessible and interesting for undergraduates at all levels.</p>
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<p><em>Oct. 11</em></p>
<h3>Polyhedra Doing Calculus</h3>
<p><em>Federico Ardila, San Francisco State University</em></p>
<p>Professor Federico Ardilla will introduce two beautiful polyhedra, and demonstate that they know how to perform two interesting calculus computations.</p>
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<p><em>Oct. 18</em></p>
<h3>Real Infinite Series: Pre-algebra Through Calculus II</h3>
<p><em>Kirby Bunas, Santa Rosa Junior College</em></p>
<p>In this talk, Kirby Bunas will present an assortment of interesting and fun real infinite series examples and proofs, at levels ranging from pre-algebra through second semester calculus. While much of the material builds upon infinite series topics taught in first year calculus, the lecture will explore a few ways that real infinite series could, in theory, be introduced much earlier in the mathematics curriculum.</p>
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<p><em>Oct. 25</em></p>
<h3>Gerrymandering and Geometry </h3>
<p><em>Greg Morre, Santa Rosa Junior College</em></p>
<p>Following the 2020 United States Census, congressional representation will be re-apportioned among the states. The congressional districts within each state must be re-drawn at this time. Gerrymandering is the process of manipulating district boundaries to favor a particular outcome of an election. In order to prevent gerrymandering most states require that electoral districts are compact. However, compactness is rarely defined. Professor Greg Morre will discuss different strategies used to gerrymander and examine how mathematics can be used to measure compactness and detect gerrymandering.</p>
<p> </p>
<p><em>Nov. 1</em></p>
<h3>Mathematical Relationships in Chemistry and their Connections with Student Understanding of Chemical Concepts</h3>
<p><em>Jennifer Whiles Lillig and Carmen Works, Chemistry Department, Sonoma State University</em></p>
<p>Math is a daily component of every chemist’s existence. Trends in the field, particularly the emerging roles of big data and data science, make a fundamental understanding of math even more important in a chemistry career. However, for a student of chemistry, math can become a daunting obstacle when trying to connect a mathematical calculation to its chemical meaning. This lecture discusses common student stumbling blocks seen across standard chemistry curriculum including mathematical-chemical relationships in reaction kinetics, biological buffers, and the molecular absorption of light. Professors Jen Lillig and Carmen Works hope to provide a platform for discussion that can support mathematical understanding for chemistry majors and potential mathematics applications for math students.</p>
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<p><em>Nov. 8</em></p>
<h3>Math Bistro III</h3>
<p><em>Bill Barnier, professor emeritus, Sonoma State University</em></p>
<p>The menu includes mathematical appetizers for the hungry mind and main dishes from Chefs Euclid, Diophantus, and others. Specials of the day will include √2 and Diophantine equations.</p>
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<p><em>Nov. 15</em></p>
<h3>Exploring Egyptian Fractions</h3>
<p><em>Mike Nakamaye, University of New Mexico</em></p>
<p>Ancient Egyptian cultures expressed fractions using (distinct) unit fractions. For example, they might have written 2/5 = 1/3 + 1/15. In addition to having practical applications for fair division problems, this interesting way of writing fractions raises many interesting mathematical questions which Professor Mike Nakamaye will explore:</p>
<p>- How do you write a "regular" fraction as an Egyptian fraction?</p>
<p>- Can you write every fraction as an Egyptian fraction?</p>
<p>- How many unit fractions do you need to express 4/n for an arbitrary whole number n?</p>
<p> </p>
<p><em>Nov. 29</em></p>
<h3>Lessons Learned from Writing Mathematics Assessments</h3>
<p><em>Jessica Balli, Callahan Consulting</em></p>
<p>Teachers spend hours crafting lesson plans that strike a balance between procedural fluency, conceptual understanding, and application in mathematics. However, when it comes to assessments, they are often collecting very limited information about what their students know. This presention will discuss how an SSU graduate is working with local schools and districts to improve assessment practices by providing students with opportunities to problem solve, reason, and model with mathematics.</p>
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<div class="field-item even">Nicolas Grizzle </div>
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<div class="field-item even">grizzle@sonoma.edu</div>
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Thu, 10 Aug 2017 18:01:51 +0000carbajaf9831 at http://news.sonoma.eduMath Colloquium
http://news.sonoma.edu/article/math-colloquium-1
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<div class="field-item even">Series Includes TED Talk Speaker Margot Gerritsen and Others</div>
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<div class="field-item even"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2017-02-06T00:00:00-08:00">February 6, 2017</span></div>
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<div class="field-item even" property="content:encoded"><p>In addition to topics like Native American math and the geometry of M.C. Escher, Sonoma State University's Math Colloquium features a lecture by Stanford professor and<a href="https://www.youtube.com/watch?v=8CX-Q0gtSp8">TED Talk </a>speaker Margot Gerritsen about the importance of Linear Algebra. Lectures are on Wednesdays at 4 p.m. in Darwin 103. Admission is free, parking is $5-$8 on campus.</p>
<p><em>Feb. 1</em> </p>
<h3>A User-Friendly Derivation of E = mc²</h3>
<p><em>Rick Luttmann, Sonoma State University (Emeritus)</em><br />
Einstein's famous formula of E = mc² quantifies the equivalence of mass and energy. But when Einstein proposed it in his 1906 paper, he wasn't thinking of mass-energy conversion, a phenomenon not then known or even suspected. He was merely trying to update the classical physics formula for Kinetic Energy to allow for the new and counter-intuitive conclusion which his remarkable Theory of Relativity predicted: that mass, time, and distance are not absolute and objective but depend on the speed v (relative to the speed c of light) between the observer and the observed via the factor. This lecture looks at the derivation of both the old and the new Kinetic Energy formulae and sketch briefly where the factor comes from.</p>
<p><em>Feb. 8 </em></p>
<h3>The Exceptional Platonic Solids</h3>
<p><em>Andrew Conner, St. Mary's College</em><br />
Since ancient Greece, scientists have been fascinated by the 3-dimensional figures called the "Platonic solids." There are only five: the tetrahedron, cube, octahedron, dodecahedron and icosahedron. Andrew Conner will explain why there are only five, and illustrate a surprising connection between the list of Platonic solids and the apparently unrelated problem of classifying complex polynomials with simple isolated critical points.</p>
<p> </p>
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<em>Feb. 15</em> </p>
<h3>The Natural Statistics of Binocular Disparity and Blur in Everyday Life</h3>
<p><em>Marty Banks, Vision Science Program, University of California, Berkeley</em><br />
The retinal images people experience depend on the visual scene and where in the scene they look. Many properties of the visual system seem to derive from the statistics of this stream of images. But to test this, the statistics must be measured. Marty Banks and his team did this by developing an eye-and-scene tracker that measures gaze direction and scene distances. Since it was mobile, participants performed natural tasks while the team collected the statistical data. The statistical data confirmed that many properties of the visual system conform to the statistics of retinal images one encounters in everyday activities.</p>
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<em>Feb. 22 </em></p>
<h3>From Counting to Quantum Physics</h3>
<p><em>Emily Calder, San Francisco State University</em><br />
Enumerative geometry is concerned with answering questions like this: Given five points in the plane, how many ellipses pass through all five of them? These problems have a rich history, including some techniques that were not always mathematically rigorous but still produced the right answers (usually). Mathematicians' attempts to carefully develop the subject of enumerative geometry have led to many recent advances, and even to some unexpected connections with the physics of string theory. Emily Calder will give a tour of some of the problems, pitfalls, and successes in the history of enumerative geometry.</p>
<p> </p>
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<em>March 1 </em></p>
<h3>Making Math</h3>
<p><em>Mike Persinger, James Monroe School; SSU Math/Stats and Education faculty</em><br />
Through "Project Make the Way," Santa Rosa K-8 students are learning math through Making. During this lecture, Mike Persinger will invite the audience to try out a Maker challenge, show examples of children at work, and demonstrate results of engaging in mathematics through these challenges.</p>
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<em>March 8</em> </p>
<h3>The Joy of Modeling and Mathematica!</h3>
<p><em>Students from Fall 2016 Math 180 and Math 470 classes</em><br />
Modeling without clay or glue? The joy of Mathematica? This lecture covers both with student projects from Martha Shott's Mathematical and Statistical Modeling course and Nick Dowdall's Mathematical Programming course. Learn about applications of matrices, differential equation, regression, and programming logic to natural systems, puzzles, and more.</p>
<p> </p>
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<em>March 15</em> </p>
<h3>No Talk--Spring Break</h3>
<p> </p>
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<em>March 22</em></p>
<h3>Learning to Engage in Mathematical Practices Through Formative Assessment Lessons</h3>
<p><em>Kimberly Seashore, San Francisco State University</em><br />
Formative assessment is a process of eliciting students' understanding of particular concepts and then using that information to design and enact instruction that is more effective than it would otherwise have been. Research has demonstrated substantial learning benefits from intentional use of formative assessment techniques to analyze student thinking and modify classroom activities -- techniques such as exit tickets, group work, and peer feedback. Kimberly Seashore presents the findings of a study of teachers making use of lessons developed by the Mathematics Assessment Project (MAP) embedded with formative assessment practices. These lessons show evidence of changes in the teachers' and students' engagement with student thinking, mathematical content, and practices as part of the lesson.This lecture will share some of the methodological challenges in studying teacher learning around complex teaching practices.</p>
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<em>March 29 </em></p>
<h3>Mathematics Gives You Wings</h3>
<p><em>Margot Gerritsen, Director of Institute for Computational and Mathematical Engineering and Professor, Stanford University</em>Linear algebra, of all subjects, is critically important and downright beautiful. Margot Gerritsen discusses the ways in which linear algebra is at the very core of science and engineering, and is foundational to hot topics like data science. She will show examples showing that the algorithm that started Google is nothing but an eigenvalue problem; that machine learning needs orthogonal decompositions; and that many programs that recommend movies or books (or even people) that you might like, are actually just really big matrix completion problems.</p>
<p> </p>
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<em>April 5 </em></p>
<h3>Hyperbolic Geometry and the Art of M.C. Escher</h3>
<p><em>Martha Byrne, Sonoma State University</em>Martha Byrne explores the bizarre world of hyperbolic geometry, where parallel lines are not what you expect, and the enchanting art of Dutch artist M.C. Escher, where nothing is as it seems. This lecture discusses geometric axioms and how one small change in assumptions creates a whole new (logically consistent) geometry in which many of the "rules" you think you know are broken, one in which squares don't even exist, as well as tiling the Euclidean plane, hyperbolic geometry and Escher's tessellations.</p>
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<em>April 12</em></p>
<h3>The Dehn-Somerville Relations and the Catalan</h3>
<p><em>Matroid Anastasia Chavez, UC Berkeley, with work from Nicole Yamzon</em><br />
A polytope is a geometric object with straight sides, often called an n-polytope where n is its dimension. For example, a polygon is a 2-polytope and a cube is a 3-polytope. The fvector of a d-polytope stores the number of faces of each dimension: so the f-vector of a cube is (8, 12, 6) (8 vertices, 12 edges, 6 faces). For many polytopes P, the DehnSommerville relations condense the f-vector into the g-vector, which has about half the length. Thus, to determine the f-vector of P, approximately half of its entries is needed. This raises the question: Which such subsets of the f-vector of such a polytope are sufficient to determine the whole f-vector? It turns out that the answer is given by the Catalan matroid, a beautiful combinatorial object that this lecture will show.</p>
<p> </p>
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<em>April 19 </em></p>
<h3>Predicting the Quality of Bordeaux Wine</h3>
<p><em>Grace Brown, Sonoma State University</em><br />
Bordeaux wines have been made in much the same way for centuries. Yet, there are differences in quality from year to year that can be quite large. In 1990, Princeton<br />
economist Orley Ashenfelter devised a statistical model to predict the quality of Bordeaux vintages. Grace Brown will present and explain Ashenfelter's results, showing that the factors that affect fluctuations in wine vintage quality can be explained in a simple quantitative way and show that a straightforward statistical analysis predicts the quality of a vintage, and hence its price, from the weather during its growing season. This lecture will also cover the basics of linear regression and predictive modeling.</p>
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<em>April 26 </em></p>
<h3>Understanding the Dynamics of the Antarctic Ice Sheet</h3>
<p><em>Noemi Petra, UC Merced</em><br />
Satellites have been recording Antarctic ice flow at the surface of the continent for decades. However, to understand the behavior at the top, one has to look at interactions happening deep below where the ice meets the Antarctic continent. Noemi Petra discusses her research combining mathematics like numerical analysis, linear algebra and statistics to get a better understanding of the dynamics of the Antarctic ice sheet by uncovering the hidden world beneath the ice. This lecture includes a modified least squares technique that will allow inferring unknown parameters in the ice sheet model that characterize the friction between the continental rock and the ice, which could be a valuable tool for scientists to understand the ice better.</p>
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<em>May 3</em></p>
<h3>Native American-based Mathematics Materials for Integration into Undergraduate Courses</h3>
<p><em>Charles P. Funkhouser, PI, and Patrick Weasel Head, Tribal Cultural Liaison, CSU Fullerton</em><br />
This team's project has developed and researched undergraduate mathematics materials based in the culture and mathematics of Native American peoples for integration into undergraduate courses. Mathematics topics include probability and statistics, number theory, transformational geometry, calculus and pre-service elementary and secondary education-related content. These materials -- both paper and electronic -- are classroom ready, and are developed and piloted in consultation with tribes in the Rocky Mountains, the Plains, the Pacific Northwest, and the Southwest. The lecturers are currently beginning new culturally based efforts with other tribes and mathematicians throughout the United States, as well as broadening the lesson content domain into all areas of STEM. This work is an NSF DUE-funded project.</p>
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<em>May 10</em> </p>
<h3>No Talk--Last Week of Instruction</h3>
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Fri, 10 Feb 2017 22:45:27 +0000carbajaf8938 at http://news.sonoma.eduMath Colloquium
http://news.sonoma.edu/article/math-colloquium-0
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<div class="field-item even"><span class="date-display-single" property="dc:date" datatype="xsd:dateTime" content="2015-08-28T00:00:00-07:00">August 28, 2015</span></div>
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<div class="field-item even" property="content:encoded"><p>Sonoma State University Department of Mathematics and Statistics presents a series of informal talks open to the public. The M*A*T*H Colloquium takes place Wednesdays at 4 p.m. in Darwin 103 with coffee, tea and cookies served before each talk. For more information, contact the math department at 664-2368 or visit <a href="http://www.sonoma.edu/math/">www.sonoma.edu/math</a>.</p>
<p>September 2</p>
<h3>The Apotheosis of Trig: Measuring to the Stars</h3>
<p><em>Rick Luttmann, SSU</em><br />
We work our way up beginning from the size of the Earth; then the sizes and distances of the moon, sun, and other planets; then the distances of nearby stars, and then other stars in our galaxy; finally the distances of remote galaxies. (Along the way we infer the speed of light.) Most of our calculations are done by using trig, but also a little physics.</p>
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September 9</p>
<h3>Modeling DNA Unlinking</h3>
<p><em>Mariel Vazquez, UC Davis</em><br />
Multiple cellular processes such as replication, recombination, and packing change the topology of DNA. The cell uses enzymes to control topological changes. We use techniques from knot theory and low-dimensional topology, aided by computational tools, to study the specific action of such enzymes. I will illustrate the use of these methods with examples drawn from my ongoing study of DNA unlinking after replication in bacteria.</p>
<p>
September 16</p>
<h3>Summer Math Research in Thailand</h3>
<p><em>Martha Shott, SSU</em><br />
This summer, Dr. Martha Shott and two Sonoma State math majors traveled to Chiang Mai, Thailand as part of the LSAMP Global Awareness Program. In this talk, you'll hear more about this LSAMP summer program, the two research projects investigated by the students, the International Mathematical Olympiad, and some general tidbits about our international experience.</p>
<p>
September 23</p>
<h3>What is Geometry? A Walk Through Mathematical Spaces</h3>
<p><em>Kathryn Mann, UC Berkeley</em><br />
When many people think of geometry, they envision some high-school curriculum involving properties of triangles. Who would suspect that geometry, in its various forms, is actually a very lively field of research mathematics today -- and one with diverse applications! The modern geometer translates problems from other areas of math (or even physics) into the language of spaces and distances, in order to apply geometric reasoning. In this talk, I'll show you how to think like a geometer, and I'll introduce you, through models and pictures, to some of the wonderful abstract spaces that we work and play in.</p>
<p>
September 30</p>
<h3>Statistical Network Models</h3>
<p><em>Elizabeth Goss, San Jose State University</em><br />
When using statistical models for network data, we would like to know the goodness-of-fit of the model (i.e., how well the model fits the data). This question has proved particularly challenging even for relatively simple classes of network models, as it currently requires sampling graphs with the same sufficient statistics (e.g., number of edges, number of triangles, degree sequence, etc) as the observed network. In this talk, we will introduce statistical network models, goodness-of-fit testing, and its connection to computational algebraic geometry.</p>
<p>
October 7</p>
<h3>How Normal are Normal Numbers?</h3>
<p><em>Joseph Conrad, Solano Community College</em><br />
Earlier this year, we celebrated Super Pi Day and we reveled in the fact that pi has been computed to trillions of digits. Why would anyone compute this many digits? One reason the digits of pi are studied is to investigate their randomness. What does this mean and how is it measured? This talk discusses the notion of normal numbers which was developed as a way to try to understand the distribution of digits in a real number.</p>
<p>
October 14</p>
<h3>Mathematics Education and the Death of Creativity</h3>
<p><em>Morgan Fjord, Fusion Academy Marin and SSU Math Alum</em><br />
Secondary mathematics education in the US is in a sorry state. Students are tested too much and learn too little, and they are expected to memorize formulas and recite them upon request. My job is to entertain my students with the awesome applications that exist in math. In this talk we will be exploring the impact of the Common Core State Standards and how we can further develop students' capacities for creativity and critical thinking in the modern age.</p>
<p>
October 21</p>
<h3>Parking Functions and Friends</h3>
<p><em>Matthias Beck, San Francisco State University</em><br />
A parking function is a sequence (x1, x2, ..., xn) of positive integers that, when rearranged from smallest to largest, satisfies xk ≤ k. We will learn the illustrative reason for the illustrative reason for the term parking function. A beautiful theorem due to Konheim and Weiss says that there are precisely (n+1)n-1 parking functions of length n. We will hint at a proof of this theorem and illustrate how it allows us to connect parking functions to seemingly unrelated objects, which happen to exhibit the same counting pattern: a certain set of hyperplanes in n-dimensional space first studied by Shi, and a certain family of mixed graphs, which we introduced in recent joint work with Ana Berrizbeitia, Michael Dairyko, Claudia Rodriguez, Amanda Ruiz, and Schuyler Veeneman.</p>
<p>
October 28</p>
<h3>Bootstrapping: a New Tool for an Old Test</h3>
<p><em>Jeff McLean, SSU</em><br />
George Cobb claimed that the standard introductory statistics course, employing methods of statistical inference based on the normal distribution, was "an unwitting prisoner of history." These methods were once necessary since much simpler approaches, such as bootstrapping, were computationally out of reach. I'll discuss how methods of inference were developed before the computing power of today and then demonstrate how the process of bootstrapping capitalizes on visual learning and allows you to "see" key concepts of statistical inference.</p>
<p>
November 4</p>
<h3>New Perspectives to Computer Vision from Algebraic Geometry and Optimization</h3>
<p><em>Serkan Hosten, San Francisco State University</em><br />
Computer vision is a field where algorithmic linear algebra makes real world applications possible. Now, algorithmic non-linear algebra is making inroads to this exciting field. The new ideas are coming from a mix of two seemingly separate areas of mathematics, namely, algebraic geometry and optimization. This talk will survey these fresh ideas.</p>
<p>
November 18</p>
<h3>Predicting Academic Success: Results from the SSU Track the Pack Survey</h3>
<p><em>Heather Smith, Department of Psychology, SSU</em><br />
A population survey of 615 second and third year SSU undergraduates who began their career at SSU showed that students' goals and backgrounds predicted classroom engagement and self-reported GPA. Importantly, students' perceptions of campus climate predicted additional variance for both outcomes. In contrast to students' goals and backgrounds, students' campus climate perceptions could be more amenable to change. For example, students' campus climate perceptions were shaped by both experiences and observations of group-based mistreatment by faculty and other students.</p>
<p>
￼December 2</p>
<h3>A 4-Dimensional Graph has at Least 9 Edges</h3>
<p><em>Roger House, Software Developer and Student of Mathematics</em><br />
The dimension of a graph is the minimum n such that the graph has a representation in R^n with every edge of length 1. In 1991 Paul Erdős posed this question: If a graph is 4-dimensional, what is the minimum number of edges it must have? This talk will answer Erdős' question in such a way that even if you've never heard of a graph, you'll understand the result.</p>
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Fri, 10 Feb 2017 22:43:38 +0000carbajaf8937 at http://news.sonoma.edu