### 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.