This item is printed on demand - it takes 3-4 days longer - Neuware -Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In mathematics, the rotation number is an invariant of homeomorphisms of the circle. It was first defined by Henri Poincar� in 1885, in relation to the precession of the perihelion of a planetary orbit. Poincar� later proved a theorem characterizing the existence of periodic orbits in terms of rationality of the rotation number. The rotation number is invariant under topological conjugacy, and even topological semiconjugacy: if f and g are two homeomorphisms of the circle and hcirc f = gcirc h for a continuous map h of the circle into itself (not necessarily homeomorphic) then f and g have the same rotation numbers. It was used by Poincar� and Arnaud Denjoy for topological classification of homeomorphisms of the circle. There are two distinct possibilities. 92 pp. Englisch.

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Bibliographic Details

Title: Rotation Number
Publisher: Omniscriptum M�r 2026
Publication Date: 2026
Language: English
ISBN 10: 6131256861
ISBN 13: 9786131256868
Binding: Taschenbuch
Condition: Neu
Dimensions: 220 millimeters width by 150 millimeters height by 6 millimeters depth
Weight: 155 grams

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