Subject: a question Date: Tue, 18 Dec 2001 03:48:15 -0800 (PST) From: abbas mousavi To: dmd1@lehigh.edu Can anyone help me with a proof or counterexampel of the following statement(this is -in some sense- a generalisation of brouwer fixed point theorem.) let f and g be functions from [0,1]^n to [0,1]^n such that fog=gof then there exist x (in [0,1]^n) such that f(x)=g(x). (It is true for n=1) dear Dr. deivis pleas change my email in topology and geometry mailing list (from mousavim@math.sharif.ac.ir)to abbasmousavi@yahoo.com . thanks abbas mousavi sharif university of technology Tehran ,Iran. __________________________________________________ Do You Yahoo!? Check out Yahoo! Shopping and Yahoo! Auctions for all of your unique holiday gifts! Buy at http://shopping.yahoo.com or bid at http://auctions.yahoo.com