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one-sided manifold

См. также в других словарях:

  • Haken manifold — In mathematics, a Haken manifold is a compact, P² irreducible 3 manifold that contains a two sided incompressible surface. Sometimes one considers only orientable Haken manifolds, in which case a Haken manifold is a compact, orientable,… …   Wikipedia

  • 2-sided — In topology, a compact codimension one submanifold F of a manifold M is said to be 2 sided in M when there is an embedding ::hcolon F imes [ 1,1] o M with h(x,0)=x for each xin F and ::h(F imes [ 1,1] )cap partial M=h(partial F imes [ 1,1] ).This …   Wikipedia

  • Orientability — For orientation of vector spaces, see orientation (mathematics). For other uses, see Orientation (disambiguation). The torus is an orientable surface …   Wikipedia

  • Christianity — /kris chee an i tee/, n., pl. Christianities. 1. the Christian religion, including the Catholic, Protestant, and Eastern Orthodox churches. 2. Christian beliefs or practices; Christian quality or character: Christianity mixed with pagan elements; …   Universalium

  • international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …   Universalium

  • Mapping class group — In mathematics, in the sub field of geometric topology, the mapping class group is an important algebraic invariant of a topological space. Briefly, the mapping class group is a discrete group of symmetries of the space. Contents 1 Motivation 2… …   Wikipedia

  • Anekantavada — Part of a series on Jain philosophy Concepts Anekāntavāda · Syādvāda · Nayavāda · …   Wikipedia

  • Idealism (italian) and after — Italian idealism and after Gentile, Croce and others Giacomo Rinaldi INTRODUCTION The history of twentieth century Italian philosophy is strongly influenced both by the peculiar character of its evolution in the preceding century and by… …   History of philosophy

  • topology — topologic /top euh loj ik/, topological, adj. topologically, adv. topologist, n. /teuh pol euh jee/, n., pl. topologies for 3. Math. 1. the study of those properties of geometric forms that remain invariant under c …   Universalium

  • Transport of structure — In mathematics, transport of structure is the definition of a new structure on an object by reference to another object on which a similar structure already exists. Definitions by transport of structure are regarded as canonical.Since… …   Wikipedia

  • Existence (Philosophy of) 1 — Philosophy of existence 1 Heidegger Jacques Taminiaux At the very outset and up to the end, the long philosophical journey of Martin Heidegger (1889–1976) remained oriented by a single question, the question of Being, the Seinsfrage. This does… …   History of philosophy

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