Severin Barmeier

activity

20132026

most citedDeformation-obstruction theory for diagrams of algebras and applications to geometry

11 citations · 43 across the 15 of their papers we have counts for

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4 papers · 1 filter

math.AG2021

Deformations of categories of coherent sheaves via quivers with relations

Severin Barmeier, Zhengfang Wang

We give an explicit combinatorial description of the deformation theory of the Abelian category of (quasi)coherent sheaves on any separated Noetherian scheme $X$ via the deformatio…

math.AG2019★ 9 cited

Quantizations of local surfaces and rebel instantons

Severin Barmeier, Elizabeth Gasparim

We construct explicit deformation quantizations of the noncompact complex surfaces $Z_{k} := Tot (O_{P^{1}} (- k))$ and describe their effect on moduli s…

math.AG2016★ 8 cited

Classical deformations of noncompact surfaces and their moduli of instantons

Severin Barmeier, Elizabeth Gasparim

We describe semiuniversal deformation spaces for the noncompact surfaces $Z_{k} := Tot (O_{P^{1}} (- k))$ and prove that any nontrivial deformation $Z_k…

math.AG2013★ 5 cited

Isomorphisms of Moduli Spaces

Carlos Casorrán Amilburu, Severin Barmeier, Brian Callander +1

We give infinitely many new isomorphisms between moduli spaces of bundles on local surfaces and on local Calabi--Yau threefolds.