# Seminars

# Analysis Seminar: Netanel Levi "A decomposition of the Laplacian on symmetric metric graphs"

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# Analysis Seminar: Barry Simon "Poncelet’s Theorem, Paraorthogonal Polynomials and the Numerical Range of Truncated GGT matrices"

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# NT&AG: Eyal Subag (Penn State University), "Symmetries of the hydrogen atom and algebraic families"

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# Analysis Seminar: Asaf Shachar (HUJI) "Regularity via minors and applications to conformal maps"

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# Zabrodsky Lecture 3: CohFT calculations

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I will explain how calculations of various natural classes on the moduli of curves fit into the CohFT framework. These include calculations related to Hilbert schemes of points, Verlinde bundles, and, if time permits, double ramification (DR) cycles. Read more about Zabrodsky Lecture 3: CohFT calculations

# Zabrodsky Lecture 2: Cohomological Field Theories

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# Zabrodsky Lecture 1: Geometry of the moduli space of curves

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The moduli space of curves, first appearing in the work of Riemann in the 19th century, plays an important role in geometry. After an introduction to the moduli space, I will discuss recent directions in the study of tautological classes on the moduli space following ideas and conjectures of Mumford, Faber-Zagier, and Pixton. Cohomological Field Theories (CohFTs) play an important role. The talk is about the search for a cohomology calculus for the moduli space of curves parallel to what is known for better understood geometries. My goal is to give a presentation of the progress in the past decade and the current state of the field.