2 papers
math.AG2025
A simple algebraic proof of the non-transitivity of the braid group action on full exceptional sequences
Atsuki Nakago, Atsushi Takahashi
Recently, Chang--Haiden--Schroll shows that the braid group action on full exceptional collections in a triangulated category is not transitive but has infinitely many orbits in ge…
math.AG2025
Frobenius manifold for the nodal quiver
Atsuki Nakago, Yuuki Shiraishi, Atsushi Takahashi
Starting from the Weierstrass elliptic function, we study the associated Frobenius structure, incorporating the perspective of derived categories, particularly that of homological…