activity
20092026
most citedShadows of characteristic cycles, Verma modules, and positivity of Chern-Schwartz-MacPherson classes of Schubert cells

48 citations · 206 across the 21 of their papers we have counts for

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Showing 2019Show all

3 papers · 1 filter

math-ph2019★ 10 cited

An algebraic approach to a quartic analogue of the Kontsevich model

Jörg Schürmann, Raimar Wulkenhaar

We consider an analogue of Kontsevich's matrix Airy function where the cubic potential is replaced by a quartic term . Cumulants of the resulti…

math.AG2019★ 24 cited

Motivic Chern classes of Schubert cells, Hecke algebras, and applications to Casselman's problem

Paolo Aluffi, Leonardo C. Mihalcea, Jörg Schürmann +1

Motivic Chern classes are elements in the K-theory of an algebraic variety , depending on an extra parameter . They are determined by functoriality and a normalization proper…

math.AG2019★ 13 cited

Positivity of Segre-MacPherson classes

Paolo Aluffi, Leonardo C. Mihalcea, Jörg Schürmann +1

Let be a complex nonsingular variety with globally generated tangent bundle. We prove that the signed Segre-MacPherson (SM) class of a constructible function on with effect…