Shinnosuke Okawa

activity

20102025

most citedDerived equivalence and Grothendieck ring of varieties: the case of K3 surfaces of degree 12 and abelian varieties

17 citations · 105 across the 28 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

math.AG2020★ 1 cited

AS-regular algebras from acyclic spherical helices

Shinnosuke Okawa, Kazushi Ueda

We discuss a construction of AS-regular algebras from acyclic spherical helices, generalizing works of Bondal and Polishchuk [BP93] and Van den Bergh [VdB11].

math.AG2020

Indecomposability of derived categories in families

Francesco Bastianelli, Pieter Belmans, Shinnosuke Okawa +1

Using the moduli space of semiorthogonal decompositions in a smooth projective family, introduced by the second, the third and the fourth author, we propose a novel approach to ind…

math.AG2020★ 7 cited

Moduli spaces of semiorthogonal decompositions in families

Pieter Belmans, Shinnosuke Okawa, Andrea T. Ricolfi

To a smooth and proper morphism $X \to U$ with quasicompact semiseparated target we associate a sheaf in the étale topology, which takes an affine $U$ -scheme $V$ to the se…