Author Archive: raphy

Colloquium: Tuesday, February 22, 2022. Speaker: Shira Zerbib (Iowa State University). Title: “KKM-type theorems and their applications”.

Time: 14:00 Abstract: The KKM theorem, due to Knaster, Kuratowski and Mazurkiewicz in 1929, is a topological lemma reminiscent of Sperner’s lemma and Brouwer’s fixed point theorem. It has numerous applications in combinatorics, discrete geometry, economics, game theory and other areas. Generalizations of this lemma, in…
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U. Haifa Topology & Geometry seminar: Sunday, Jan. 30, 2022. Speaker: Sanjeevi Krishnan (Ohio State University). “Title:  A Kan Condition for Directed Homotopy”

Time: Sunday Jan 30th, 17:00 (Israel Time) Location: On Zoom Speaker: Sanjeevi Krishnan (Ohio State University) Title: A Kan Condition for Directed Homotopy Abstract.The Kan condition guarantees that a simplicial set, a formal colimit of abstract simplices, models enough features…
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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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Colloquium: Tuesday, January 4, 2022. Speaker: Eliran Subag (Weizmann). Title: “Generalized TAP approach for spherical spin glasses”.

Dear all, The last colloquium for this semester will be held ONLINE on 4.1.2022 at 14:00 (Tuesday). Zoom link: https://us02web.zoom.us/j/82797905845?pwd=VUxHdkwyRzZIOHdDWkF2OC92U0p6UT09 Speaker: Eliran Subag (Weizmann) Date: Tuesday, January 4, 2022 Time: 14:00 Title: Generalized TAP approach for spherical spin glasses Abstract:…
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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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Colloquium: Tuesday, December 21, 2021. Speaker: Liran Shaul (Charles University). Title: “The Cohen-Macaulay property, its applications”.

Dear all, The next colloquium for this semester will be held ONLINE on 21.12.2021 at 14:00 (Tuesday). Zoom link: https://us02web.zoom.us/j/82797905845?pwd=VUxHdkwyRzZIOHdDWkF2OC92U0p6UT09 Speaker: Liran Shaul (Charles University) Date: Tuesday, December 21, 2021 Time: 14:00 Title: The Cohen-Macaulay property, its applications and generalizations…
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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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Colloquium: Tuesday, December 14, 2021. Speaker: Jacob Shapiro (Princeton). Title: “Strongly-Disordered Topological Insulators”.

The next colloquium for this semester will be held ONLINE on 14.12.2021 at 14:00 (Tuesday). Zoom link: https://us02web.zoom.us/j/82797905845?pwd=VUxHdkwyRzZIOHdDWkF2OC92U0p6UT09 Speaker: Jacob Shapiro (Princeton) Date: Tuesday, December 14, 2021 Time: 14:00 Title: Strongly-Disordered Topological Insulators Abstract: Topological insulators are novel materials which…
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