“Science is not reduced to a sum of facts, just as a building is not reduced to a pile of stones.” (Henri Poincaré)The author of a theorem that drove mathema...

Collection of articles. - M.-Izhevsk: Regular and chaotic dynamics, 2001. - 208 p. — ISBN 5-93972-038-2.

The book contains the main mathematical and n...

2nd ed., stereotype. - Per. from French — Ed. L.S. Pontryagin. - M.: Nauka, 1990. - 736 p. — ISBN 5-02-014328-6.

Includes four works by the outstandin...