User:Bcurfs

From Wikipedia, the free encyclopedia

Hello,

my name is Bruno Curfs. I studied mathematics in Utrecht. Since my professional carreer is developing in ICT, mathematics is 'only' a hobby to me.

Now and then, I am browsing the internet and am interested in unsolved problems like: - does there exist a magic square of 3x3 of which the entries are squares? - do there exist odd perfect numbers? - are there infinite number of prime twins? - Can every number of the form 4/n with n>1 be written as the sum three Egyptian fractions, i.e. can you find x,y,z integers with 4/n = 1/x + 1/y + 1/z. - Is there a terminating algorithm for Rubik's cube using (almost) only turns that lower the entropy of the cube?

Etc.

Bcurfs 17:49, 30 December 2005 (UTC)