**Topology of Numbers**

by Allen Hatcher

**Publisher**: Cornell University 2014**Number of pages**: 122

**Description**:

An introductory textbook on elementary number theory from a geometric point of view, as opposed to the usual strictly algebraic approach. A fair amount of the book is devoted to studying Conway's topographs associated to quadratic forms in two variables.

Download or read it online for free here:

**Download link**

(1.7MB, PDF)

## Similar books

**The Theory of Numbers**

by

**R. D. Carmichael**-

**John Wiley & Sons**

The purpose of this book is to give the reader a convenient introduction to the theory of numbers. The treatment throughout is made as brief as is possible consistent with clearness and is confined entirely to fundamental matters.

(

**8627**views)

**Elementary Theory of Numbers**

by

**Waclaw Sierpinski**-

**ICM**

The variety of topics covered here includes divisibility, diophantine equations, prime numbers, the basic arithmetic functions, congruences, the quadratic reciprocity law, expansion of real numbers into decimal fractions, and more.

(

**8230**views)

**Elementary Number Theory**

by

**William Edwin Clark**-

**University of South Florida**

One might think that of all areas of mathematics arithmetic should be the simplest, but it is a surprisingly deep subject. It is assumed that students have some familiarity with set theory, calculus, and a certain amount of mathematical maturity.

(

**9688**views)

**An Introductory Course in Elementary Number Theory**

by

**Wissam Raji**-

**The Saylor Foundation**

These are notes for an undergraduate course in number theory. Proofs of basic theorems are presented in an interesting and comprehensive way that can be read and understood even by non-majors. The exercises broaden the understanding of the concepts.

(

**1094**views)