Algebra Ring and Field theory by Alireza Salehi Golsefidy
This PDF covers the following topics related to Rings and 
Fields : A pseudo-historical note, More on subrings and ring 
homomorphisms, The evaluation or the substitution map, Defining fractions, Using 
the universal property of the field of fractions, An application of the first 
isomorphism theorem, The factor theorem and the generalized factor theorems, 
Gaussian integers, Irreducibility and zeros of polynomials, 
Content of a polynomial with rational coefficients, An example on the mod 
irreducibility criterion, Factorization: uniqueness, and prime elements, Ring of 
integer polynomials is a UFD, Greatest common divisor for UFDs, Extension of 
isomorphisms to splitting fields, Finite fields, etc.
Author(s): Alireza Salehi
 Golsefidy, University of California San Diego
 295 Pages
295 Pages