44 citations · 110 across the 20 of their papers we have counts for
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math.CT2018★ 3 cited
Non-exactness of direct products of quasi-coherent sheaves
Ryo Kanda
For a noetherian scheme that has an ample family of invertible sheaves, we prove that direct products in the category of quasi-coherent sheaves are not exact unless the scheme is a…
math.CT2018★ 1 cited
Extension groups between atoms in abelian categories
Ryo Kanda
We introduce the extension groups between atoms in an abelian category. For a locally noetherian Grothendieck category, the localizing subcategories closed under injective envelope…