Geometric constructions of higher Bruhat orders and M -Morsifications

DOI10.1070/IM1996v060n06ABEH000096zbMath0892.58007MaRDI QIDQ4368473

G. G. Il'yuta

Publication date: 14 January 1998

Published in: Izvestiya: Mathematics (Search for Journal in Brave)

zbMATH Keywords

Young tableauxBruhat ordersdiscriminantal arrangementsBernoulli-Euler numbers\(A_n\)-singularityextremal points of a graphmaximal morsificationSpringer cone

Mathematics Subject Classification ID

Bernoulli and Euler numbers and polynomials (11B68) Braid groups; Artin groups (20F36) Enumeration in graph theory (05C30) Complex surface and hypersurface singularities (32S25) Theory of singularities and catastrophe theory (58K99) Differentiable maps on manifolds (58C25)

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