Topological classification of trigonometric polynomials related to the affine Coxeter group \(\widetilde A_2\).

DOI10.1134/S0081543807030029zbMath1196.58004OpenAlexW2039921047MaRDI QIDQ2377563

Vladimir I. Arnold

Publication date: 19 January 2009

Published in: Proceedings of the Steklov Institute of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1134/s0081543807030029

zbMATH Keywords

Coxeter groupMorse functionholomorphic conjugateholomorphic real partordered graph of a Morse function

Mathematics Subject Classification ID

Reflection and Coxeter groups (group-theoretic aspects) (20F55) Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) Global theory of singularities (58K30) Critical points of functions and mappings on manifolds (58K05)

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