2 papers
math.CO2026
Toric Richardson Varieties and Slice Links
Thomas C. Martinez, Matthew J. Tyler
For type braid varieties, including Richardson varieties and positroid varieties, we prove that the standard torus has a dense orbit exactly when the associated link is smoothl…
math.AG2026
Locally Acyclic Surface Type and Finite Type Cluster Algebras Have No Mysterious Points
Matthew Tyler
Cluster varieties contain the union of cluster tori and the points not in this union are called , and the locus of these points is called the $\textit{deep lo…