Wall-crossing

In algebraic geometry and string theory, the phenomenon of wall-crossing describes the discontinuous change of a certain quantity, such as an integer geometric invariant, an index or a space of BPS state, across a codimension-one wall in a space of stability conditions, a so-called wall of marginal stability.

References

This article is issued from Wikipedia - version of the Wednesday, September 30, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.