Exotic R4: Difference between revisions

Revision as of 18:13, 23 June 2007

An exotic $\mathbb {R} ^{4}$ is a differential manifold that is homeomorphic, but not diffeomorphic, to Euclidean space $\mathbb {R} ^{4}$ .

Revision as of 18:12, 23 June 2007 (view source) Vipul (talk \| contribs) No edit summary		Revision as of 18:13, 23 June 2007 (view source) Vipul (talk \| contribs) (→‎Definition) Newer edit →
Line 2:		Line 2:
	==Definition==		==Definition==

	An ''exotic <math>\R^4</math>''' is a [[differential manifold]] that is homeomorphic, but not diffeomorphic, to Euclidean space <math>\R^4</math>.		An '''exotic <math>\R^4</math>''' is a [[differential manifold]] that is homeomorphic, but not diffeomorphic, to Euclidean space <math>\R^4</math>.