Colloquium

Colloquium Speaker: Frol Zpolsky (U. of Haifa) Topic: Big fiber theorems Place: This is an online seminar. Please email Yuval Ginosar “ginosar at math dot haifa dot ac dot il” for the Zoom ID and password. Date: Tuesday, March 9,…
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Dear all, The colloquium returns in an online format (via ZOOM). The talk will be given by our own David Blanc. Your attendance is important and will indicate the demand for more talks in this format. ZOOM link: https://zoom.us/j/96809520900 Time:…
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Place: Room 614 in the Education & Sciences Building Time: 14:00                                                    Abstract: Bounded harmonic functions on groups are closely related to random walks on groups. It has long been known that all virtually nilpotent groups are “Choquet-Deny groups”: these groups cannot support…
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  Place: Room 614 in the Education & Sciences Building Time: 14:00   Abstract:   Being fractionally Calabi-Yau is a periodicity property of triangulated categories introduced by Kontsevich more than 20 years ago. It is quite rare that a finite-dimensional algebra has…
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  Place: Room 614 in the Education & Sciences Building Time: 14:00   Abstract: A predictive sequence is a subset P of {n<0} such that for any finite valued zero entropy stationary ergodic process {X_j} the random variable X_0 is a function…
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Place: Room 614 in the Education & Sciences Building Time: 14:00   Abstract:   Given a set S of positive measure on the unit circle, a set of integers K is an interpolation set (IS) for S if for any data {c(k)}…
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Place: Room 614 in the Education & Sciences Building Time: 14:00 Abstract: Open Gromov-Witten (OGW) invariants should count pseudoholomorphic maps from Riemann surfaces with boundary to a symplectic manifold, with boundary conditions and various constraints on boundary and interior marked…
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Place: Room 614 in the Education & Sciences Building Time: 14:00 We discuss how something remarkably similar to Hall’s marriage theorem appears naturally in context of a conjecture of Grothendieck in algebraic geometry, and how this is useful to prove…
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Given a family of sets, a partial choice function chooses an element from some of them. The range of the function is then called a “rainbow set” (the “colors” being the sets). There are two types of conditions that are…
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Place: Room 614 in the Education & Sciences Building Time: 14:00   Abstract: A king-non-attacking permutation is a permutation $\pi \in S_n$ such that $|\pi(i)-\pi(i-1)|\neq 1$ for each $i \in \{2,\dots,n\}$. We investigate the structure of the poset of these permutations under…
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