3 papers
math.CT2020
Frobenius and spherical codomains and neighbourhoods
Andreas Hochenegger, Ciaran Meachan
Given an exact functor between triangulated categories which admits both adjoints and whose cotwist is either zero or an autoequivalence, we show how to associate a unique full tri…
math.AG2019
Hochschild cohomology and deformations of -functors
Ciaran Meachan, Theo Raedschelders
Given a split -functor between smooth projective varieties, we provide necessary and sufficient conditions, in terms of the Ho…
math.AG2018
Derived equivalent Hilbert schemes of points on K3 surfaces which are not birational
Ciaran Meachan, Giovanni Mongardi, Kota Yoshioka
We provide a criterion for when Hilbert schemes of points on K3 surfaces are birational. In particular, this allows us to generate a plethora of examples of non-birational Hilbert…