- multiply connected surface
- мат. многосвязная поверхность
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
Simply connected space — In topology, a topological space is called simply connected (or 1 connected) if it is path connected and every path between two points can be continuously transformed, staying within the space, into any other path while preserving the two… … Wikipedia
Rolling ball — In topology, quantum mechanics and geometrodynamics, rolling ball arguments are used to describe how the perceived geometry and connectivity of a surface can be scale dependent.If a researcher probes the shape of an intricately curved surface by… … Wikipedia
Superfluid film — Superfluidity and superconductivity are of inherent interest because they are macroscopic manifestations of quantum mechanics. There is a considerable amount of interest, both theoretical and practical, in these quantum phase transitions. There… … Wikipedia
Shape of the Universe — Edge of the Universe redirects here. For the Bee Gees song, see Edge of the Universe (song). The local geometry of the universe is determined by whether Omega is less than, equal to or greater than 1. From top to bottom: a spherical universe, a… … Wikipedia
Covering space — A covering map satisfies the local triviality condition. Intuitively, such maps locally project a stack of pancakes above an open region, U, onto U. In mathematics, more specifically algebraic topology, a covering map is a continuous surjective… … Wikipedia
Finite strain theory — Continuum mechanics … Wikipedia
Wormhole — In physics, a wormhole is a hypothetical topological feature of spacetime that is fundamentally a shortcut through space and time. Spacetime can be viewed as a 2D surface, and when folded over, a wormhole bridge can be formed. A wormhole has at… … Wikipedia
Doughnut theory of the universe — The doughnut theory of the universe is an informal description of the theory that the shape of the universe is a three dimensional torus. The name comes from the shape of a doughnut, whose surface has the topology of a two dimensional torus. The… … Wikipedia
Universe — For other uses, see Universe (disambiguation). Physical cosmology … Wikipedia
Aharonov-Bohm effect — The Aharonov Bohm effect, sometimes called the Ehrenberg Siday Aharonov Bohm effect, is a quantum mechanical phenomenon by which a charged particle is affected by electromagnetic fields in regions from which the particle is excluded. Werner… … Wikipedia
Potential theory — may be defined as the study of harmonic functions. Definition and comments The term potential theory arises from the fact that, in 19th century physics, the fundamental forces of nature were believed to be derived from potentials which satisfied… … Wikipedia