I do not see Chebychev is being used. Good search ' Chebychev' fails as well.

Do you mean Google search? If so, it automatically changes the search to 'Chebyshev', click on 'Search instead for Chebychev'. There appear to be more spellings depending on your language (obviously): http://en.wikipedia.org/wiki/Pafnuty_Chebyshev It would seem to me that the best way to fix this is to just spell his name the way he did: Пафну́тий Льво́вич Чебышёв. All we need to do is update PETSc to use unicode strings. How hard could that be?