## Christian McRoberts Preliminary Exam

Please join us for the following Preliminary Exam: Title: Graph coloring problems Major professor: Bernard Lidicky

Please join us for the following Preliminary Exam: Title: Graph coloring problems Major professor: Bernard Lidicky

Pelin Guven Geredeli, an assistant professor in the Department of Mathematics and CoMFRE affiliate, is conducting two projects that hope to advance multiphase-flow discoveries. New techniques for fluid-structure interactions The NSF-Applied Mathematics research project “Control Theory, Qualitative Analysis, and Approximation of Coupled Structure-Flow Interaction Systems” intends to generate novel techniques to analyze well-posedness, develop control … Continue reading A project and a conference: Insight to FSI PDE modeling behavior

Speaker: Lee Przybylski (ISU) Abstract: We develop a method for calculating the persistence landscapes of affine fractals using the parameters of the corresponding transformations. Given an iterated function system of affine transformations that satisfies a certain compatibility condition, we prove that there exists an affine transformation acting on the space of persistence landscapes which intertwines … Continue reading PADS Seminar: The Persistence Landscapes of Affine Fractals

Speaker: by Dima Sinapova (University of Illinois at Chicago) Abstract: Two classical results of Magidor are: from large cardinals it is consistent to have reflection at ℵω+1\aleph_{\omega+1}ℵω+1, and from large cardinals it is consistent to have the failure of the singular cardinal hypothesis (SCH) at ℵω\aleph_\omegaℵω. These principles are at odds with each other. The … Continue reading Math Logic Seminar: Stationary reflection and singular cardinals

Speaker: Eoin Hurley (Universität Heidelberg) Abstract: We develop a method to study sufficient conditions for perfect mixed tilings. Our framework allows the embedding of bounded degree graphs HHH with components of sublinear order. As a corollary, we recover and extend the work of Kühn and Osthus regarding sufficient minimum degree conditions for perfect FFF-tilings (for … Continue reading Discrete Math Seminar: Sufficient Conditions for Perfect Mixed Tilings

Speaker: Chris Eur (Harvard) Abstract: Algebraic geometry has furnished fruitful tools for studying matroids, which are combinatorial abstractions of hyperplane arrangements. We first survey some recent developments, pointing out how these developments remained partially disjoint. We then introduce certain vector bundles (K-classes) on permutohedral varieties, which we call “tautological bundles (classes)” of matroids, as a … Continue reading Algebra and Geometry Seminar: Tautological classes of matroids

Speaker: Mikos Bona (University of Florida) Abstract: The theory of permutation patterns studies subsequences of permutations that behave in a prescribed way. It is a relatively young field that has seen tremendous progress in the last 30 years. In the first half of the talk, we will give an overview of the most important results … Continue reading Math Colloquium: Pattern Avoiding Permutations Something Old, Something New

Sonia Kovalevsky was a pioneer for women in mathematics and science. Despite her obvious talent for mathematics, Sonia Kovalevsky could not complete her education in Russia. She had to emigrate to Germany because women were not allowed to attend universities in Russia at that time. She was the first woman to obtain a PhD in … Continue reading Sonia Kovalevsky Mathematics Day 2022