Author Archive: raphy

Department of Mathematics                                                           University of  Haifa                                                    Colloquium Speaker: Ami Viselter (University of Haifa) Topic: Convolution semigroups on quantum groups and non-commutative Dirichlet forms Place: Room 614 in the Science & Education Building Time: 14:00 Date: Tuesday, October 23, 2018                                                    Abstract: We will discuss convolution semigroups…
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Polynomial functors were introduced in an algebraic setting by Eilenberg and Mac Lane around 1954 (but implicitly were present already in the work of Schur circa 1900). Since the advent of the calculus of functors (Tom Goodwillie in the 1990-ies),…
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For a projective curve C defined over F_q we study the statistics of the F_q-structure of a section of C by a random hyperplane defined over F_q in the $q\to\infty$ limit. We obtain a very general equidistribution result for this problem. We deduce…
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New fundamental physical theories can, so far a posteriori, be seen as emerging from existing ones via some kind of deformation. That is the basis for Flato’s “deformation philosophy”, of which the main paradigms are the physics revolutions from the…
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My talk will be devoted to a basic theory of extensions of complete real-valued fields L/K. Naturally, one says that L is topologically-algebraically generated over K by a subset S if L lies in the completion of the algebraic closure…
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I will talk about the celebrated Eliashberg-Gromov theorem on C^0 robustness of symplectic diffeomorphisms, and some of its recent extensions from the field of C^0 symplectic geometry.

Let X be a smooth compact algebraic curve defined by equations with rational coefficients. If the genus of X is not less than 2, then by Mordel’s conjecture = Faltings’ theorem, the set X(Q) of rational points of X is…
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A major concern in Group Theory is the question of linearity of a given group and, in case the group is linear, the question of determining all its possible Linear Representations. While this question is entirely of algebraic nature, many…
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  Initial developments in the theory of (topological) quantum groups were motivated on one hand by the desire to extend the classical Pontryagin duality for locally compact abelian groups to a wider class of objects and on the other by…
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