James reduced product
id:
james-reduced-product-196-16103298
title:
James reduced product
text:
In topology, a branch of mathematics, the James reduced product or James construction J(X) of a topological space X with given basepoint e is the quotient of the disjoint union of all powers X, X2, X3, ... obtained by identifying points (x1,...,xk−1,e,xk+1,...,xn) with (x1,...,xk−1, xk+1,...,xn). In other words, its underlying set is the free monoid generated by X (with unit e). It was introduced by Ioan James (1955). For a connected CW complex X, the James reduced product J(X) has the same homo
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https://en.wikipedia.org/wiki/James_reduced_product
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date modified:
2020-05-27T14:45:21Z
main entity:
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