Geometry and Topology Seminar

The Geometry and Topology Seminar at the University of Haifa meets every two weeks, with talks on a wide range of topics in algebraic, geometric, differential, and symplectic topology, and in differential and algebraic geometry, broadly understood.

The seminar takes place on Wednesday 12:10 in room 614 (tentative). For more information please contact the seminar organizer, Frol Zapolsky.

U. Haifa Topology & Geometry seminar: Sunday, Jan. 16, 2022. Speaker: Constanze Roitzheim (Kent). “Title:  How algebraic is a stable model category?”

Time: Sunday Jan 16th, 16:00 (Israel Time) Location: On Zoom Speaker: Constanze Roitzheim (Kent) Title: How algebraic is a stable model category? Recording: https://us02web.zoom.us/rec/share/U3QSe8AehwtkDxuOa3c_tUrVFn2ZbHfAUbKzPdkFpM11ctz1klUclZ20C1QSPxzd.9rlLEtnAergESl5Q Abstract: There are many different notions of “being algebraic” used in stable homotopy theory. The relationships…
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U. Haifa Topology & Geometry seminar: Sunday, Jan. 9, 2022. Speaker: Jerome Scherer (EPFL). “Title:  Floyd’s manifold is a conjugation space.”

Time: Sunday Jan 9, 2021, 17:00 (Israel Time) Location: On Zoom Speaker: Jerome Scherer (EPFL) Title:  Floyd’s manifold is a conjugation space. Slides: https://mathematics.haifa.ac.il/wp-content/uploads/Jerome_HaifaTopologySeminarJanuary2022.pdf Recording: https://us02web.zoom.us/rec/share/azLKTgeGE0bXGINeY_5hFcYebo_TqaJg5iUncF2quJzpdheNEOKViXb9kh0Eb13G.oSZiH6GcAjsdiC5R Abstract: This is joint work with Wolfgang Pitsch. We illustrate how equivariant stable homotopy…
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U. Haifa Topology & Geometry seminar: Sunday, Jan. 2, 2022. Speaker: Dan Mangoubi (Hebrew University). “Title: A Local version of Courant’s Nodal domain Theorem”

Time: Sunday Jan 2nd, 17:00 (Israel Time) Location: On Zoom Speaker: Dan Mangoubi (Hebrew University) Title: A Local version of Courant’s Nodal domain Theorem. Slides: https://mathematics.haifa.ac.il/wp-content/uploads/Haifa-University-020122-slides.pdf Abstract. Let u_k be an eigenfunction of a vibrating string (with fixed ends) corresponding…
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U. Haifa Topology & Geometry seminar: Sunday, Dec. 26, 2021. Speaker: Daniel Kaner (U. Haifa). “Title: Condensed mathematics”

Time: Sunday Dec 26, 2021, 17:00 (Israel Time) Location: On Zoom Speaker: Daniel Kaner (U. Haifa) Title: Condensed mathematics. ZOOM COORDINATES: https://us02web.zoom.us/j/84987591026?pwd=aTJWcFlOSldKck5leGt2d25CYkRqZz09 Meeting ID: 849 8759 1026 Recording: https://us02web.zoom.us/rec/share/OVXg3b1h30WaEThTuyX1RTOC85Ee42zQrxdl6XzZhP_OywAe_UGYG1mlUENPznLR.ddk5ZtYnmlh5A17E A condensed set is a sheaf of sets on the category of profinite spaces (with an…
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U. Haifa Topology & Geometry seminar: Sunday, Dec. 19, 2021. Speaker: Omer Bobrowski (Technion). “Title: Topological Phase Transitions in Random Geometric Complexes”

Time: Sunday Dec 19, 17:00 (Israel Time) Location: On Zoom Speaker: Omer Bobrowski (Technion) Title: Topological Phase Transitions in Random Geometric Complexes Abstract. Connectivity and percolation are two well studied phenomena in random graphs.  In this talk we will discuss…
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U. Haifa Topology & Geometry seminar: Sunday, Dec. 12, 2021. Speaker: Kate Ponto (Kentucky). “Title: Iterated Traces”

Time: Sunday Dec 12, 17:00 (Israel Time) Location: On Zoom Recording: https://us02web.zoom.us/rec/share/XY3l8ev_WpQUpjD0RzE-X862TBv9ntxuNhe1PI7MSYyf3yb4JhYuMMM27v2MXFde.hYunCTG7Me2VAC6e Speaker: Kate Ponto (Kentucky) Title: Iterated Traces Abstract. The trace of a matrix does not seem like an operation that should be iterated, but if we step back…
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U. Haifa Topology & Geometry seminar: Sunday, Dec. 5, 2021. Speaker: Theo Johnson-Freyd (Dalhousie/Perimeter Institute). “Title:  Algebraically Closed Higher Categories”

Time: Sunday December 5th 17:00 (Israel Time) Location: On Zoom Recording: https://us02web.zoom.us/rec/share/MjyzxaBsbY7S1RGjShKMSBcfKtgqm8STy9-_KzeHeMdz8bwJhZ-F1wJuG0QhDrUv.aa8mS84tuLDHuHHs Slides: http://categorified.net/Haifa.pdf Speaker: Theo Johnson-Freyd (Dalhousie/Perimeter Institute) Title: Algebraically Closed Higher Categories Abstract. Super Tannakian duality can be interpreted as saying that the symmetric monoidal category Vec is…
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U. Haifa Topology & Geometry seminar: Sunday, NOV 28, 2021. Speaker: Jereon Hekking (KTH). “Title:  Graded algebras, projective spectra and blow-ups in derived algebraic geometry”

Time: Sunday November 28th 17:00 (Israel Time) Location: On Zoom Speaker: Jereon Hekking (KTH) Title: Graded algebras, projective spectra and blow-ups in derived algebraic geometry Recording: https://us02web.zoom.us/rec/share/Cb6AhzbntZk0ipwpYjRkoAlQNTYyhGOuiY42sSP0AcoSz7i0hacCJNQrrVoqlWw.sOAp1cmjCc-0TKjv Abstract. The goal of this talk is to define the derived blow-up of…
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U. Haifa Topology & Geometry seminar: Sunday, NOV 21, 2021. Speaker: Yoav Len (St. Andrews). “Title:  The Geometry of Graphs and Algebraic Curves”

Time: Sunday November 21st 17:00 (Israel Time) Location: On Zoom Recording: https://us02web.zoom.us/rec/share/ARtScxOE0tfOqjHkNNFBUYhtya5XHrPsWCKXQBbEAqVIs6HooFHsRKGe0cl6EHc.Fz4o-ycGSOsZ49J- Speaker: Yoav Len (St. Andrews) Title: The Geometry of Graphs and Algebraic Curves Abstract. My talk will revolve around combinatorial aspects of algebraic curves. Via tropical geometry, problems…
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U. Haifa Topology & Geometry seminar: Sunday, NOV 14, 2021. Speaker: Edgar Bering IV (Technion). “Title:  Topological Models of Abstract Commeasurators”

Time: Sunday, Nov, 14 at 17:00 (Israel Time) Location: On Zoom Recording: https://us02web.zoom.us/rec/share/5KZWjr3mjh7ltmMa2ijysTj_WKFy8JBOOku8XFclUB3xibnXenLooKeN3Tp0ORw.EGSolWYiClpROhFg Abstract:  Given a group G, an Eilenberg-MacLane space X = K(G,1) provides a topological model of both G and Aut(G). The latter is understood via Whitehead’s theorem…
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