18 citations · 63 across the 16 of their papers we have counts for
8 papers · 1 filter
Graded tilting for gauged Landau-Ginzburg models and geometric applications
Christian Okonek, Andrei Teleman
In this paper we develop a graded tilting theory for gauged Landau-Ginzburg models of regular sections in vector bundles over projective varieties. Our main theoretical result desc…
A wall crossing formula for degrees of real central projections
Christian Okonek, Andrei Teleman
The main result is a wall crossing formula for central projections defined on submanifolds of a real projective space. Our formula gives the jump of the degree of such a projection…
Real determinant line bundles
Christian Okonek, Andrei Teleman
This article is an expanded version of the talk given by Ch. O. at the Second Latin Congress on "Symmetries in Geometry and Physics" in Curitiba, Brazil in December 2010. In this v…
Symmetric theta divisors of Klein surfaces
Christian Okonek, Andrei Teleman
This is a slightly expanded version of the talk given by Ch.O. at the conference "Instantons in complex geometry", at the Steklov Institute in Moscow. The purpose of this talk was…
Intrinsic signs and lower bounds in real algebraic geometry
Christian Okonek, Andrei Teleman
A classical result due to Segre states that on a real cubic surface in there exists two kinds of real lines: elliptic and hyperbolic lines. These two kinds of re…
Abelian Yang-Mills theory on Real tori and Theta divisors of Klein surfaces
Christian Okonek, Andrei Teleman
The purpose of this paper is to compute determinant index bundles of certain families of Real Dirac type operators on Klein surfaces as elements in the corresponding Grothendieck g…