University of Haifa – החוג למתמטיקה, אוניברסיטת חיפה
Place: Room 614, Education and Sciences Building (Zoom screening), University of Haifa Date and Time: November 19, 2024, 14:00-15:00 Zoom recording Abstract: Symplectic geometry, a field originating in the study of classical mechanics, explores manifolds where real-valued functions induce flows, leading to…
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Time: Tuesday, 18.06.24 at 14:00-15:00 Location: Room 614, Science and Education Building, University of Haifa. Zoom link: https://us02web.zoom.us/j/88665951849?pwd=Tjg5UlRjKzE2ZHN1NkNXWmp5R1V1dz09Meeting ID: 886 6595 1849Passcode: Contact Sefi Ladkani Abstract: The Mobius function is one of the most important arithmetic functions. There is a…
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Time: Tuesday, 21.05.24 at 14:00-15:00 Location: Room 614, Science and Education Building, University of Haifa. Zoom link: https://us02web.zoom.us/j/88665951849?pwd=Tjg5UlRjKzE2ZHN1NkNXWmp5R1V1dz09Meeting ID: 886 6595 1849Passcode: (contact Sefi Ladkani) Abstract: I shall give a survey of some recent developments in the study of equations…
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The free skew field as a version of noncommutative localization of the free algebra was constructed by Amitsur and Cohn. We will call the elements of the free skew field noncommutative (nc for short) rational functions. Recently, nc rational functions…
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In this talk, I will introduce the notion of Poincar´e duality spaces in the equivariantsetting for finite groups and discuss an approach relating equivariant Poincar´e duality withPoincar´e duality on the fixed points. Time permitting, I will also indicate how one…
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While encoding the homotopy invariants in a model category, one approach (due to Heller and Grothendieck) is to determine certain higher invariants in the homotopy categories of all small diagram categories. In this talk, we provide an explicit approach to…
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We give an introduction to the theory of locally compact quantum groups and present an old-new construction called the Rieffel deformation, which allows constructing quantum groups from simple classical objects. If time permits, we show how to construct Levy processes,…
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In many machine learning tasks, the goal is to learn an unknown function which has some known group symmetries. Equivariant machine learning algorithms exploits this by devising architectures (=function spaces) which have these symmetries by construction. Examples include convolutional neural…
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(A joint work with Waltraud Lederle) In order to avoid technicalities I will focus on one specific example for a higher (-)rank lattice: the group . This group exhibits strong rigidity properties, some of which are naturally expressed in topological terms. For example,…
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This talk will be on Zoom:https://us02web.zoom.us/j/83920631646?pwd=cWZRWjllZWEvdjVSNVhTdUxMMGlwUT09 I will start explaining that Hamiltonian reduction can be understood as a particular instance of Lagrangian intersections, within the framework of shifted symplectic geometry. One can see this first part of the talk as…
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