Algebra and number theory

"This comprehensive reference demonstrates the key manipulations surrounding Brauer groups, graded rings, group representations, ideal classes of number fields, p-adic differential equations, and rationality problems of invariant fields - displaying an extraordinary command of the most advanced methods in current algebra."--BOOK JACKET. "Containing over 300 references, Algebra and Number Theory is an ideal resource for pure and applied mathematicians, algebraists, number theorists, and upper-level undergraduate and graduate students in these disciplines."--BOOK JACKET.