Seminar in Real & Complex Geometry

Past sessions

  • March 13, 2012, -- E. Shustin (TAU) "Welschinger invariants from an algebraic geometry point of view"
  • March 19, 2012, -- D. Kerner (Toronto) "Discriminant of transversal singularity type"
  • March 20, 2012, -- E. Shustin (TAU) "Welschinger invariants from an algebraic geometry point of view (continuation)"
  • May 8, 2012, -- Vic. Kulikov (Moscow) "Covering semigroups"
  • May 14, 2012, -- O. Ben-Bassat (Haifa) "Sub-varieties and Descent"
  • May 22, 2012, -- A. Kanel-Belov (Bar Ilan) "Polynomial automorphisms and Jacobian conjecture"
  • May 29, 2012, -- Jonathan Wahl (North Carolina) "Singular points of complex surfaces---geometry and smoothing"
  • May 30, 2012, -- Jiuzu Hong (Tel Aviv) "Polynomial functors and categorifications"
  • June 5, 2012, -- Michael Bialy (Tel Aviv) "Hopf rigidity for convex billiards on Hemisphere and Hyperbolic plane"
  • November 1, 2012, -- Franziska Schroeter (Saarbruecken) "Broccoli curves of genus 0 and maybe 1" (Slides)
  • November 8, 2012, -- Dmitry Kerner (Beer Sheva) "On finite determinacy"
  • December 6, 2012, -- Pinaki Mondal (Weizmann) "An effective criterion for algebraic contraction of curves"
  • December 13, 2012, -- Dmitry Kerner (Beer Sheva) "Degenerations of projective curves"
  • December 20, 2012, -- Amnon Yekutieli (Beer Sheva) "Residues and duality for schemes and stacks" (Slides)
  • January 17, 2013, -- Bernd Sturmfels (Berkeley) "Non-negative polynomials versus sums of squares" (Slides)
  • January 24, 2013, -- Lev Radzivilovsky (Tel Aviv) "Rational curves on the compactified moduli space of rational curves with marked points"
  • February 7, 2013, -- Soli Vishkautsan (Bar Ilan) "Residual periodicity on algebraic varieties"
  • February 28, 2013, -- Liran Shaul (Weizmann) "Rigid dualizing complexes over commutative adic rings"
  • April 11, 2013, -- Dmitry Kerner (Ben Gurion) "Matrices over local rings: criteria for decomposability or being an extension"
  • April 18, 2013, -- Pinaki Mondal (Weizmann Institute) "Degree-like functions in complex and real algebraic geometry"
  • July 11, 2013, -- Misha Verbitsky (High School of Economics, Moscow) "Global Torelli theorem for hyperkaehler manifolds" (Slides)
  • July 15, 2013, -- Misha Verbitsky (High School of Economics, Moscow) "Ergodic complex structures" (Slides)
  • August 4, 2013, -- Tal Perri (Bar-Ilan) "Algebraic aspects in tropical mathematics"
  • October 9, 2013, -- Franziska Schroeter (Saarbruecken) "Refined Broccoli invariants"
  • November 6, 2013, -- Stepan Orevkov (Steklov Institute) "Algorithmic recognition of quasipositive braids of algebraic length two"
  • December 5, 2013, -- Oren Ben-Bassat (University of Oxford / University of Haifa) "Analytic Geometry As Relative Algebraic Geometry"
  • December 26, 2013, -- Alfred Inselberg (Tel Aviv University) "On the representation of hyperplanes in parallel coordinates"
  • January 9, 2013, -- Alfred Inselberg (Tel Aviv University) "Representing hypersurfaces in parallel coordinates"
  • January 16, 2014, -- Amnon Yekutieli (Ben-Gurion University) "Duality and Tilting for Commutative DG Rings"
  • February 26, 2014, -- Pinaki Mondal (Weizmann Institute) "Towards a constructive theory of compactifications of $C^n$"
  • June 5, 2014, -- Dmitry Kerner (Ben-Gurion) "A strong version of implicit function theorem"
  • June 12, 2014, -- Karol Palka (University of Warsaw) "On the log Minimal Model Program in dimension two and its application to the Coolidge-Nagata problem"
  • September 17, 2014, -- Alex Isaev (Australian National University) "On the CR-embeddability of a family of real hypersurfaces in an n-dimensional complex affine quadric into complex Euclidean n-space. Proper group actions in complex geometry" (Slides)
  • October 23, 2014, -- Dmitry Kerner (Ben-Gurion University) "Finite determinacy of matrices"
  • October 30, 2014, -- Victor Kulikov (Steklov Institute) "Numerically pluricanonical cyclic coverings"
  • November 13, 2014, -- Emmanuel Opshtein (Universite de Strasbourg) "Singularities of pseudo-holomorphic curves and symplectic embeddings in CP^2"
  • January 22, 2015, -- Yoav Len (Yale University) "Tropical plane quartics"
  • March 19, 2015, -- Victor Batyrev (Universitaet Tuebingen) "Nonarchimedean integration over spherical varieties"
  • March 26, 2015, -- Hannah Markwig (Universitaet des Saarlandes) "Repairing tropicalizations of plane curves with modifications"
  • April 15, 2015, -- Shachar Carmeli (Weizmann Institute) "On the stability and Gelfand property of symmetric pairs"
  • May 13, 2015, -- Victor Kulikov (Steklov Mathematical Institute) "Plane rational quartics and $K3$ surfaces"
  • July 21, 2015, -- Mikhail Verbitsky (High School of Economics) "Proof of Morrison-Kawamata cone conjecture for hyperkahler manifolds" (Slides)
  • July 22, 2015, -- Mikhail Verbitsky (High School of Economics) "Teichmuller space of symplectic structures" (Slides)
  • October 8, 2015, -- Sergey Natanzon (High School of Economics) "2D Toda hierarchy, Hurwitz numbers and Riemann theorem"
  • May 31, 2016, -- Askold Khovanskii (University of Toronto) "Newton polyhedra and components of complete intersections" (Slides)
  • June 6, 2016, -- Moshe Klein (Tel Aviv) "The 0 Axis and the Fifth Dimension"
  • June 14, 2016, -- Ziv Ran (University of California at Riverside) "Generic projections"
  • November 9, 2016, -- Hélène Esnault (Freie Universität Berlin) "D-modules and finite monodromy" (Slides)
  • November 16, 2016, -- Mikhail Borovoi (Tel Aviv University) "Cayley groups"
  • December 22, 2016, -- Amnon Yekutieli (Ben Gurion University) "The Derived Category of Sheaves of Commutative DG Rings" (Slides)
  • January 12, 2017, -- Mikhail Borovoi (Tel Aviv University) "Reeder 's puzzle and orbits in real homogeneous spaces"
  • March 13, 2017, -- Lev Blechman (Tel Aviv University) "Introduction to tropical enumerative geometry"
  • March 20, 2017, -- Lev Blechman (Tel Aviv University) "Refined descendant Gromov-Witten Invariants"
  • April 3, 2017, -- Izzet Coskun (University of Illinois at Chicago) "Birational geometry of moduli spaces of sheaves on surfaces"
  • April 3, 2017, -- Ilia Itenberg (Université Paris 6) "Tropical homology"
  • April 24, 2017, -- Peter Leviant (Tel Aviv University) "Morsifications of real plane curve singularities"
  • May 8, 2017, -- Lev Radzivilovsky (Tel Aviv University) "Chow quotient"
  • June 12, 2017, -- Zur Izhakian (University of Aberdeen) "Tropical plactic algebra and semigroup representations"
  • November 2, 2017, -- Boaz Elazar (Weizmann Institute) "Schwartz Functions On Algebraic And QN Varieties"
  • November 9, 2017, -- Ran Tessler (ETH, Zürich) "Open (CP^1,RP^1) intersection theory and open Gromov-Witten/Hurwitz corrspondence"
  • November 16, 2017, -- Andrés Jaramillo (Tel Aviv) "Rigid isotopies of degree 5 nodal rational curves in \mathbb{RP}^2" ( Slides)
  • November 23, 2017, -- Mikhail Borovoi (Tel Aviv) "Spherical varieties: combinatorial invariants of spherical homogeneous spaces"

    Next session

  • November 30, 2017, -- Giuliano Gagliardi (Tel Aviv) "The Luna-Vust theory of spherical embeddings"

    Future sessions

  • December 28, 2017, -- Dmitry Kerner (Ben Gurion University) TBA