Wall-crossing structures



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Recording Details

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Collection/Series: 
PIRSA Number: 
13100119

Abstract

The concept of wall-crossing structure (WCS for short) was introduced
recently in my joint work with Maxim Kontsevich. WCS appear in different
disguises in the theory of Donaldson-Thomas invariants of Calabi-Yau
3-folds, quiver representations,integrable systems of Hitchin type,
cluster algebras, Mirror Symmetry, etc.
I plan to discuss the
definition of WCS and illustrate it in several well-known examples. If
time permits I will speak about a special class of WCS called rational
WCS. It gives rise to wall-crossing formulas with factors which are
algebraic functions. Conjecturally such WCS appear in Hitchin integrable
systems with singularities.