## Normal forms for functions near degenerate critical points, the Weyl groups of A$$_k$$, D$$_k$$, E$$_k$$ and lagrangian singularities.(English. Russian original)Zbl 0278.57011

Funct. Anal. Appl. 6, 254-272 (1973); translation from Funkts. Anal. Prilozh. 6, No. 4, 3-25 (1972).

### MSC:

 57R45 Singularities of differentiable mappings in differential topology 57R30 Foliations in differential topology; geometric theory 26E10 $$C^\infty$$-functions, quasi-analytic functions
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### References:

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