Speaker: Dan Cooley (Colorado State) Title: Regular Variation, the TPDM, and Vector Spaces Abstract: In high dimensions, fully characterizing the extremal dependence structure is difficult. However, summarizing extremal dependence via pairwise measures, whose estimation is straightforward, can provide actionable dependence information for modeling. Assuming the framework of multivariate regular variation, this talk will introduce the…Continue Reading 10-2-2025: Dan Cooley, “Regular Variation, the TPDM, and Vector Spaces”
Month: September 2025
9-18-2025: Julie Bergner, “Combinatorial examples of 2-Segal sets and their Hall algebras”
Speaker: Julie Bergner (Virgina) Title: Combinatorial examples of 2-Segal sets and their Hall algebras Abstract: The notion of a 2-Segal set encodes an algebraic structure that is similar to that of a category, but for which composition need not exist or be unique, yet is still associative. The fact that such structures give rise to…Continue Reading 9-18-2025: Julie Bergner, “Combinatorial examples of 2-Segal sets and their Hall algebras”