A t a conference held in January 2005, Lawrence Summers, then president of Harvard University, hypothesized that a major reason for the paucity of women mathematicians among the tenured faculty ofâ€¦ (More)

Cayley graphs arise naturally in computer science, in the study of word-hyperbolic groups and automatic groups, in change-ringing, in creating Escher-like repeating patterns in the hyperbolic plane,â€¦ (More)

A graph labeling is an assignment of integers to the vertices or edges, or both, subject to certain conditions. Graph labelings were first introduced in the late 1960s. In the intervening yearsâ€¦ (More)

I would actually recommend: Contemporary Abstract Algebra. It also has many, many more problems per section and a lot more answers. edit. So the pdf of the book used in the course ("Algebra" by Artinâ€¦ (More)

We say a digraph G is hyperhamiltonian if there is a spanning closed walk in G which passes through one vertex exactly twice and all others exactly once. We show the cartesian product Zg x Zb of twoâ€¦ (More)