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228 bytes added ,  04:09, October 1, 2009
put another way ...
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A '''diffeomorphism''' is an infinitely [[derivative|differentiable]] [[homeomorphism]] with an infinitely differentiable inverse.
 
A '''diffeomorphism''' is an infinitely [[derivative|differentiable]] [[homeomorphism]] with an infinitely differentiable inverse.
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Put another way, a diffeomorphism is a type of function that satisfies the following condition: both the function and its inverse have continuous mixed partial derivatives of all orders in neighborhoods of every possible point.
 
[[category: mathematics]]
 
[[category: mathematics]]
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