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September 2021

Quantitative Approaches to Social Justice (Prof. Chad Topaz)

September 22 @ 4:30 pm - 5:45 pm
Zoom meeting United States

Title: Quantitative Approaches to Social Justice Prof. Chad Topaz (he/him/his) Co-Founder and Executive Director of Research, QSIDE Institute Professor of Mathematics, Williams College Abstract: Civil rights leader, educator, and investigative journalist Ida B. Wells said that "the way to right wrongs is to shine the light of truth upon them." This talk will demonstrate how quantitative and computational approaches can shine a light on social injustices and help build solutions to remedy them. We will present quantitative social justice projects…

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Virtual Trivalent Spatial Graphs . . . (Sherilyn Tamagawa)

September 29 @ 4:30 pm - 5:45 pm

Title: Virtual Trivalent Spatial Graphs and Virtual Niebrzydowski Algebras Speaker: Prof. Sherilyn Tamagawa Visiting Assistant Professor Pomona College Abstract: If you were given two tangled up circles of string, could you untangle one to look like the other without cutting and reattaching the string? How could you tell? Knot theory explores answers to these questions. In this talk, we discuss a generalization of a knot, called a virtual trivalent spatial graph. We will then introduce virtual Niebrzydowski algebras, algebraic structures which can…

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October 2021

Interrupted Time Series Models for Assessing Complex Health Care Interventions (Maricela Cruz, PhD)

October 6 @ 4:30 pm - 5:45 pm
Zoom meeting United States + Google Map

Title: Interrupted Time Series Models for Assessing Complex Health Care Interventions Maricela Cruz, PhD Assistant Investigator Biostatistics Unit Kaiser Permanente Washington Health Research Institute Abstract:  Assessing the impact of complex interventions on measurable health outcomes is a growing concern in health care and health policy. According to the 2018 Annual Review of Public Health, interrupted time series (ITS) designs may be the only feasible recourse for studying the impacts of large-scale public health policies. Statistical models used to analyze ITS data…

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What we talk about when we talk about math (Prof. Lillian Pierce)

October 13 @ 4:30 pm - 5:45 pm

Title: What we talk about when we talk about math Speaker: Prof. Lillian Pierce, Nicholas J. and Theresa M. Leonardy Professor of Mathematics at Duke University Abstract: In 1864, the mathematician J. J. Sylvester wrote: May not Music be described as the Mathematics of the sense, Mathematics as Music of the reason?...Thus the musician feels Mathematics, the mathematician thinks Music,— Music the dream, Mathematics the working life. What does it feel like to do mathematics? Can we share the dream…

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Panel on Paths in Mathematics After Undergrad

October 20 @ 4:30 pm - 5:45 pm

Panelists: Tatiana Bradley, Michelle Goodwin, Isys Johnson, John Lentfer, and Matthew vonAllmen We will have a panel discussion with graduates from the Claremont Consortium who have taken different pathways after graduation. After introductions, there will be time for open questions from the audience. Afterward, breakout rooms will be open for a casual discussion with the panelists and more participants. Including a breakout room on the “4+1” Master’s Program at CGU, with current and past students. Panelist Bios: Tatiana Bradley is a Software…

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Clouds and Climate (Prof. Tapio Schneider)

October 27 @ 4:30 pm - 5:45 pm

Title: Clouds and Climate Prof. Tapio Schneider Theodore Y. Wu Professor of Environmental Science and Engineering California Institute of Technology Abstract: Clouds are an essential regulator of climate. They cool Earth on average by 5 degrees centigrade. Yet despite their importance, the response of clouds to climate change is very uncertain. This is especially true for the low clouds that cover vast areas of tropical oceans. Their primary effect is to cool Earth by reflecting sunlight back to space. I…

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November 2021

Topological descriptions of protein folding (Prof. Helen Wong)

November 3 @ 4:30 pm - 5:30 pm

Title: Topological descriptions of protein folding Speaker:  Prof. Helen Wong, Department of Mathematical Sciences, Claremont-McKenna College. Abstract: Knotting in proteins was once considered exceedingly rare. However, systematic analyses of solved protein structures over the last two decades have demonstrated the existence of many deeply knotted proteins, and researchers now hypothesize that the knotting presents some functional or evolutionary advantage for those proteins. Unfortunately, little is known about how proteins fold into knotted configurations. In this talk, we approach this problem…

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Projections on Banach spaces and a lifting property of operators (Prof. Botelho)

November 10 @ 4:30 pm - 5:45 pm

Title: Projections on Banach spaces and a lifting property of operators Prof. Maria Fernanda Botelho Department of Mathematical Sciences The University Of Memphis Abstract: In this talk I will present properties of contractive projections and explain their role in the existence of norm preserving lifts of operators. A pair of Banach spaces (X, J), with J a closed subspace of X, has the quotient lifting property (QLP) iff for every space Y and S ∈ L(Y, X/J), there is Ŝ…

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Collective Behavior in Locust Swarms from Data to Differential Equations (Prof. Jasper Weinburd)

November 17 @ 4:30 pm - 5:45 pm

Title: Collective Behavior in Locust Swarms from Data to Differential Equations   Prof. Jasper Weinburd Department of Mathematics Harvey Mudd College   Abstract: Locusts are devastating pests that infest and destroy crops. Locusts forage and migrate in large swarms which exhibit distinctive shapes that improve efficiency on the group level, a phenomenon known as collective behavior. One of the difficulties in understanding and preventing these collective behaviors has been a lack of biological data for individual interactions between locusts.  In…

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December 2021

A tribute to Professor Ellis Cumberbatch (1934-2021)

December 1 @ 4:30 pm - 6:00 pm

Title: A tribute to Professor Ellis Cumberbatch (1934-2021) Abstract: The math colloquium on December 1st will be devoted to remembrances of our beloved CGU colleague Professor Ellis Cumberbatch, a pillar of the Claremont mathematics community, who passed away in September. Three brief talks by his friends and collaborators, Professor John Ockendon (University of Oxford), Dr. Henok Abebe (Sandia National Labs), and Professor Asuman Aksoy (Claremont McKenna College) will be followed by informal reminiscences by any of the attendees who wish…

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