9 citations · 15 across the 4 of their papers we have counts for
4 papers
Bialgebra structure on Bridgeland's Hall algebra of two-periodic complexes
Shintarou Yanagida
We study the bialgebra structure of the Hall algebra of two-periodic complexes recently introduced by Bridgeland. We introduce coproduct on Bridgeland's Hall algebra, and show that…
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.
Norms of logarithmic primaries of Virasoro algebra
Shintarou Yanagida
We give an algebraic proof of the formula on the norm of logarithmic primary of Virasoro algebra, which was proposed by Al. Zamolodchikov. This formula appears in the recursion for…
Semi-homogeneous sheaves, Fourier-Mukai transforms and moduli of stable sheaves on abelian surfaces
Shintarou Yanagida, Kota Yoshioka
This paper studies stable sheaves on abelian surfaces of Picard number one. Our main tools are semi-homogeneous sheaves and Fourier-Mukai transforms. We introduce the notion of sem…