3 papers
math.AG2025
A simpler kernel for stratified Mukai flops
Ed Segal, Wei Tseu
We reinvestigate the problem of describing the Fourier-Mukai kernel for the derived equivalence associated to a stratified Mukai flop. For the case of Grassmannians of planes we gi…
math.AG2025
Window equivalences via categorical sl(2) actions
Wei Tseu
We identify two distinct approaches to the derived equivalence for the stratified Mukai flop of cotangent bundles of Grassmannians -- one induced by the geometric categorical sl(2)…
math.AG2025
Canonical tilting bundles: the first nonabelian examples
Wei Tseu
We present an explicit construction of tilting bundles on cotangent bundles of Grassmannians of 2-planes. This construction is based on Kapranov's exceptional collection for the un…