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Combinatorial and Gauge theoretical methods in low dimensional topology and geometry

Exotic four-manifolds with cyclic fundamental groups

speaker: András Stipsicz (Alfréd Rényi Institute of Mathematics)

abstract: It is a fascinating problem in four-dimensional topology to determine which topological four-manifolds admit more than one (or even infinitely many) distinct smooth structures. This question is wide open for some basic examples like the four-sphere, the four-torus and the complex projective plane. In collaboration with Inanc Baykur and Zoltán Szabó we have made some progress in the case when the fundamental group of the closed four-manifold is a cyclic group of even order.

timetable:
Fri 7 Jun, 9:30 - 10:30, Aula Dini
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