2 papers
math.GT2023
Combinations of parabolically geometrically finite groups and their geometry
Brian Udall
In this paper, we study the class of parabolically geometrically finite (PGF) subgroups of mapping class groups, introduced by Dowdall-Durham-Leininger-Sisto. We prove a combinatio…
math.FA2021
The Krein-von Neumann Extension of a Regular Even Order Quasi-Differential Operator
Minsung Cho, Seth Hoisington, Roger Nichols +1
We characterize by boundary conditions the Krein-von Neumann extension of a strictly positive minimal operator corresponding to a regular even order quasi-differential expression o…