- invariant from right partition
- мат.инвариантное справа разбиение
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
Arf invariant (knot) — In the mathematical field of knot theory, the Arf invariant of a knot, named after Cahit Arf, is a knot invariant obtained from a quadratic form associated to a Seifert surface. If F is a Seifert surface of a knot, then the homology group H1( F … Wikipedia
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