Journal of Symplectic Geometry

Volume 3 (2005)

Number 4

Lagrangian boundary conditions for anti-self-dual instantons and the Atiyah{\rm --}Floer conjecture}

Pages: 703 – 747



Katrin Wehrheim


The purpose of this survey is to explain an approach to the Atiyah--Floer conjecture via a new instanton Floer homology with Lagrangian boundary conditions. This is a joint project with Dietmar Salamon; see [14] for an earlier exposition. This paper also provides a rough guide to the analysis of anti-self-dual instantons with Lagrangian boundary conditions in [21, 22], which is the crucial ingredient of our approach.

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