“DehnsLemma”的概念、定义、习题解题方法及翻译-数学辞典

单词	DehnsLemma
释义	Dehn’s lemma The Dehn’s lemma states that if a continuous map from a2-disk (http://planetmath.org/StandardNBall) to a 3-manifold $f\\colon D^{2}\\to M$ for which $f^{-1}f\\partial D^{2}=D^{2}$ , then there exists an embedding $g\\colon D^{2}\\to M$ such that the restrictions $g\|\\partial$ and $f\|\\partial$ areequal.
随便看	partial function PartialIsometry partial isometry PartialIsometryOnHilbertSpaces partial isometry on Hilbert spaces partialLinearSpace (partial) linear space PartiallyOrderedAlgebraicSystem partially ordered algebraic system PartiallyOrderedGroup partially ordered group PartiallyOrderedRing partially ordered ring PartialMapping partial mapping PartialOrder partial order PartialOrderingInATopologicalSpace partial ordering in a topological space PartialOrderWithChainConditionDoesNotCollapseCardinals partial order with chain condition does not collapse cardinals partialTiltingModule (partial) tilting module ParticleMovingOnACardioidAtConstantFrequency particle moving on a cardioid at constant frequency

数学辞典收录了18232条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。

Dehn’s lemma