heras1985
Sep30-09, 08:14 AM
Hi, I would like to know if two spaces are isomorphics:
Y\coprod (X\times I) \coprod Z/ \sim, where let x\in X we have that (x,0)\sim f(x) (f: X \rightarrow Y) and (x,1)\sim g(x) (g: X \rightarrow Z).
The second space is Y\coprod Z/ \sim where let
x\in X we have that f(x)\sim g(x) , where f y g are the same functions that in the first space
Any idea?
Y\coprod (X\times I) \coprod Z/ \sim, where let x\in X we have that (x,0)\sim f(x) (f: X \rightarrow Y) and (x,1)\sim g(x) (g: X \rightarrow Z).
The second space is Y\coprod Z/ \sim where let
x\in X we have that f(x)\sim g(x) , where f y g are the same functions that in the first space
Any idea?