Author Archive: raphy

U. Haifa Topology & Geometry seminar: Sunday, Apr. 24, 2022. Speaker: Surojit Ghosh (IIT Roorkee). Title: “Slice Filtration of E”.

Time: 17:00 (Israel Time) Location: On Zoom Recording: https://us02web.zoom.us/rec/share/hgnju1bKL_ueL3VYdTVbsd1yvB737rHJxu7HK2UyAien-F4CgUYMa2iWYxL_7sHL.Yn8cQ8p8qmFdUK0e Abstract. The slice filtration is an equivariant analogue of the Postnikov tower and it is modeled on Voevodsky’s motivic filtration. I will begin by recalling the definition of slice filtration along…
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U. Haifa Topology & Geometry seminar: Sunday, Apr. 10, 2022. Speaker: Niles Johnson (Ohio State University). Title: “Graded Picard categories and the 2-type of the sphere”.

Time: 17:00 (Israel Time) Location: On Zoom Recording: https://us02web.zoom.us/rec/share/c93WMCqjj3eUShqHmo0pAyvcVQsJCDKMfFflNdJvj3NjjXnwH6rndDkFT1J8YBFJ.wkT8MPwk-Dl_yovw Slides: https://nilesjohnson.net/notes/grPic-P2S.pdf Abstract: The Stable Homotopy Hypothesis connects symmetric monoidalalgebra and stable homotopy theory.  In a classical special case, thethe tensor product of graded abelian groups leads to a model for…
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U. Haifa Topology & Geometry seminar: Sunday, Apr. 3, 2022. Speaker: Sanjeevi Krishnan (Ohio State University). Title: “A Kan Condition for Directed Homotopy”.

Time: 17:00 (Israel Time) Location: On Zoom Abstract.The Kan condition guarantees that a simplicial set, a formal colimit of abstract simplices, models enough features of a topological space so that classical homotopy theory can be given a completely combinatorial description. …
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Colloquium: Tuesday, March 29, 2022. Speaker: Speaker: Christopher Voll (Bielefeld). Title: “Zeta functions of groups, rings, and modules”.

The zoom link for our meetings is:https://us02web.zoom.us/j/83337601824 Abstract: Zeta functions are ubiquitous in mathematics. In algebra and geometry, they often have an enumerative interpretation, prominent examples being the Dedekind zeta function of a number field and the (Weil) zeta function of…
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