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math.AG2024
Noncommutative Singularity Theory
Gavin Brown, Michael Wemyss
This is an expository article on the noncommutative singularity theory of power series in noncommuting variables, its motivation from deformation theory, and its applications to co…
math.AG2024
Derived deformation theory of crepant curves
Gavin Brown, Michael Wemyss
This paper determines the full derived deformation theory of certain smooth rational curves C in Calabi-Yau 3-folds, by determining all higher A_\infty-products in its controlling…