- JSJ
- abbr.Jodeit Schelmztecknik Jena
Dictionary of abbreviations. 2012.
JSJ
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JSJ decomposition — In mathematics, the JSJ decomposition, also known as the toral decomposition, is a topological construct given by the following theorem: Irreducible orientable closed (i.e., compact and without boundary) 3 manifolds have a unique (up to isotopy)… … Wikipedia
JSJ-Zerlegung — Die Jaco Shalen Johannson Zerlegung, abgekürzt JSJ Zerlegung, benannt nach William Jaco, Peter Shalen und Klaus Johannson, ist eine Aussage aus der Topologie der 3 Mannigfaltigkeiten. Aussage Sie besagt, dass jede 3 dimensionale Mannigfaltigkeit… … Deutsch Wikipedia
Bass–Serre theory — is a part of the mathematical subject of group theory that deals with analyzing the algebraic structure of groups acting by automorphisms on simplicial trees. The theory relates group actions on trees with decomposing groups as iterated… … Wikipedia
Zlil Sela — is an Isareli mathematician working in the area of geometric group theory.He is a Professor of Mathematics at the Hebrew University of Jerusalem. Sela is known for the solution of the isomorphism problem for torsion free word hyperbolic groups… … Wikipedia
Geometric group theory — is an area in mathematics devoted to the study of finitely generated groups via exploring the connections between algebraic properties of such groups and topological and geometric properties of spaces on which these groups act (that is, when the… … Wikipedia
Geometrization conjecture — Thurston s geometrization conjecture states that compact 3 manifolds can be decomposed canonically into submanifolds that have geometric structures. The geometrization conjecture is an analogue for 3 manifolds of the uniformization theorem for… … Wikipedia
Knot (mathematics) — A table of all prime knots with seven crossings or fewer (not including mirror images). In mathematics, a knot is an embedding of a circle in 3 dimensional Euclidean space, R3, considered up to continuous deformations (isotopies). A crucial… … Wikipedia
Geometrisierung von 3-Mannigfaltigkeiten — Die Idee der Geometrisierung wurde 1980 von William Thurston als ein Programm zur Klassifizierung geschlossener dreidimensionaler Mannigfaltigkeiten vorgestellt. Das Ziel der Geometrisierung ist, nach der Zerlegung einer 3 Mannigfaltigkeit in… … Deutsch Wikipedia
Graph manifold — In topology, a graph manifold (in German: Graphenmannigfaltigkeit) is a 3 manifold which is obtained by gluing some circle bundles. They were invented and classified by the German topologist Friedhelm Waldhausen in 1967. This definition allows a… … Wikipedia
Satellite knot — In the mathematical theory of knots, a satellite knot is a knot which contains an incompressible, non boundary parallel torus in its complement [Colin Adams, The Knot Book: An Elementary Introduction to the Mathematical Theory of Knots , (2001),… … Wikipedia
