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math.QA2012★ 4 cited
A note on Bridgeland's Hall algebra of two-periodic complexes
Shintarou Yanagida
We show that the Hall algebra of two-periodic complexes, which is recently introduced by T.Bridgeland, coincides with the Drinfeld double of the ordinary Hall bialgebra.
math.AG2012★ 6 cited
Bridgeland's stabilities on abelian surfaces
Shintarou Yanagida, Kota Yoshioka
In this paper, we shall study the structure of walls for Bridgeland's stability conditions on abelian surfaces. In particular, we shall study the structure of walls for the moduli…