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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb. (N.S.), 1974 Volume 94(136), Number 3(7), Pages 452–467 (Mi sm3692)

This article is cited in 2 papers

Germs of mappings $\omega$-determined with respect to a given group

G. R. Belitskii


Abstract: Let $ J(n,p)$ be the space of germs of $C^\infty$-mappings $F\colon(R^n,0)\to(R^p,0)$ and $\mathfrak G$ a group operating on $J(n,p)$. The germ $F\in J(n,p)$ is called finitely determined with respect to $\mathfrak G$ if there exists an integer $k$ such that the orbit of the germ $F$ under the action of $\mathfrak G$ is uniquely determined by the $k$-jet of the germ $F$. The germ $F$ is called $\omega$-determined with respect to the group $\mathfrak G$ if each germ $G\in J(n,p)$ that has the same formal series as $F$ at the origin lies in the orbit of $F$ under the action of $\mathfrak G$.
In this work, sufficient conditions are stated for $\omega$-determinedness. Examples are given of $\omega$-determined germs which are not finitely determined.
Bibliography: 5 titles.

UDC: 519.46

MSC: 58A20, 58C25

Received: 20.11.1973


 English version:
Mathematics of the USSR-Sbornik, 1974, 23:3, 425–440

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