Robert B. Ash
Professor Emeritus, Mathematics
Dept. of Mathematics
University of Illinois
1409 W Green St.
Urbana, IL 61801
email ash5 [at] illinois [dot] edu
Bob died in April, 2015. He was taking his usual walk in the late afternoon and was hit by a car while he was in a cross walk.
His web page is still here for the time being.
For undergraduate course notes by Carol Ash in Differential Equations, Advanced Calculus, Discrete Math and Linear Algebra click here
Remarks on Expository Writing in Mathematics
Click to read/download Remarks in pdf format
Books On Line
Abstract Algebra: The Basic Graduate Year
This is a student-oriented text covering the standard first year
graduate course in algebra.
Solutions to all problems are included and some of the reasoning is informal.
A Course In Algebraic Number Theory
An introduction to the subject, covering both global and local fields. The prerequisite is a standard graduate course in algebra.
A Course In Commutative Algebra
Commutative algebra is the theoretical foundation of algebraic geometry and algebraic number theory. Assuming as prerequisite a standard graduate algebra course, we attempt to reach an advanced level quickly and efficiently.
Complex Variables
Co-authored by W.P. Novinger (retired), Florida State University.
This is a student-oriented text covering the standard first year
graduate course in complex variables.
Solutions to all problems are included.
Lectures on Statistics
These lectures cover a first course in mathematical statistics. Basic probability is a prerequisite, but no prior knowledge of statistics is assumed.
A Pari/GP Tutorial
An introduction to the computer algebra system Pari/GP, designed for computations in number theory.
Real Variables with Basic Metric Space Topology
This is a reprint of a text first published by IEEE Press in 1993.
Basic Probability Theory
This is a reprint of a text first published by John Wiley and Sons in 1970.