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JOURNALS // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika // Archive

Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2015 Number 2, Pages 9–16 (Mi vmumm216)

This article is cited in 1 paper

Mathematics

Minimal linear Morse functions on the orbits in Lie algebras

V. A. Shmarov

Lomonosov Moscow State University, Faculty of Mechanics and Mathematics

Abstract: A theorem stating that all Morse height functions are perfect on regular orbits of the adjoint action of compact semisimple Lie groups is proved. In the case of arbitrary linear representation of a compact Lie group we prove that all height functions are Bott functions on orbits of representation. The case of $\mathrm{SO}_{4}$ is studied in more detail.

Key words: Lie group, Lie algebra, adjoint action, orbit, height function, perfect Morse function.

UDC: 512.815

Received: 27.09.2013


 English version:
Moscow University Mathematics Bulletin, Moscow University Måchanics Bulletin, 2015, 70:2, 60–67

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