Category:Cobordisms

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This category contains results about Cobordisms.
Definitions specific to this category can be found in Definitions/Cobordisms.

Let $X^n$ and $Y^n$ be manifolds without boundary of dimension $n$.


A cobordism $W^{n + 1}$ between $X$ and $Y$ is an $\paren {n + 1}$-dimensional topological manifold such that:

$\partial W = X \cup Y$

where $\partial W$ denotes the boundary of $W$.

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