- torus action
- мат.действие на торе
English-Russian scientific dictionary. 2008.
torus action
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Loewner's torus inequality — In differential geometry, Loewner s torus inequality is an inequality due to Charles Loewner for the systole of an arbitrary Riemannian metric on the 2 torus.tatementIn 1949 Charles Loewner proved that every metric on the 2 torus mathbb T^2… … Wikipedia
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Hopf conjecture — In mathematics there are two Hopf conjectures. They belong to the field of differential geometry, and are named for Heinz Hopf.One of the Hopf conjectures states, that a compact, even dimensional Riemannian manifold with positive sectional… … Wikipedia
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