C O L L O Q U I U M


SYZ-Conjecture for hyperkählerian manifolds of dimension 4

Professor Andrey Todorov

University of California at Santa Cruz, USA

and

IMS, CUHK

Abstract

 

Recently Strominger-Yau-Zaslow(SYZ) conjectured the existence of torus calibrated fibration over the three dimensional sphere of Calabi-Yau three folds and the dual fibration should give the so called mirror of the initial CY three fold.

In this talk we will describe the analogue of SYZ conjecture for four dimensional Hyper-Kähler manifolds. We will show that the complex structure on any four dimensional Hyper-Kähler manifold can be isometrically deformed to a new Hyper-Kähler manifold which can be fibred over the complex projective plane on two dimensional complex toruses.

There is a hope that this result will show that there exists only finite number of topological Hyper-Kähler compact manifolds.

 

Date:

January 12, 2001 (Friday) 

Time:

4:00 - 5:00pm

Place:

Room 517, Meng Wah Complex

 

 

 

All are welcome