wild embedding
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Wild knot — In the mathematical theory of knots, a knot is tame if it can be thickened up , that is, if there exists an extension to an embedding of the solid torus S 1 times; D 2 into the 3 sphere. A knot is tame if and only it can be represented as a… … Wikipedia
Origin of language — The origin of language is the emergence of language in the human species. This is a highly controversial topic, empirical evidence being so limited that many regard it as unsuitable for serious scholars. In 1866, the Linguistic Society of Paris… … Wikipedia
Alexander horned sphere — The Alexander horned sphere is one of the most famous pathological examples in mathematics discovered in 1924 by J. W. Alexander. It is the particular embedding of a sphere in 3 dimensional Euclidean space obtained by the following construction,… … 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
Portable Document Format — PDF redirects here. For other uses, see PDF (disambiguation). Portable Document Format Adobe Reader icon Filename extension .pdf Internet media type application/pdf application/x pdf application/x bzpdf application/x gzpdf … Wikipedia
Word problem for groups — In mathematics, especially in the area of abstract algebra known as combinatorial group theory, the word problem for a recursively presented group G is the algorithmic problem of deciding whether two words represent the same element. Although it… … Wikipedia
List of knot theory topics — Knot theory is the study of mathematical knots. While inspired by knots which appear in daily life in shoelaces and rope, a mathematician s knot differs in that the ends are joined together so that it cannot be undone. In precise mathematical… … Wikipedia
Modular representation theory — is a branch of mathematics, and that part of representation theory that studies linear representations of finite group G over a field K of positive characteristic. As well as having applications to group theory, modular representations arise… … Wikipedia
Liste der Erfinder — Dies ist eine Liste von Erfindern, die die Welt mit ihren Erfindungen bereichert haben. Ein Erfinder ist jemand, der ein Problem erkannt hat, es gelöst und mindestens einmal damit Erfolg gehabt hat. Er muss nicht der erste gewesen sein; eine… … Deutsch Wikipedia
Microsoft Word — Microsoft Office Word Microsoft Office Word 2010 on Windows 7 … Wikipedia
Microformat — For the photographic miniaturization of documents, see Microform. For details of microformats used on Wikipedia, see Wikipedia:Microformats. A microformat (sometimes abbreviated μF) is a web based approach to semantic markup which seeks to re use … Wikipedia
