**The Elements of Non-Euclidean Geometry**

by D.M.Y. Sommerville

**Publisher**: G.Bell & Sons Ltd. 1914**ISBN/ASIN**: 0486442225**Number of pages**: 158

**Description**:

Renowned for its lucid yet meticulous exposition, this text follows the development of non-Euclidean geometry from a fundamental analysis of the concept of parallelism to such advanced topics as inversion and transformations. It features the relation between parataxy and parallelism, the absolute measure, the pseudosphere, and Gauss' proof of the defect-area theorem.

Download or read it online for free here:

**Download link**

(multiple formats)

Download mirrors:**Mirror 1**

## Similar books

**Geometry with an Introduction to Cosmic Topology**

by

**Mike Hitchman**

This text develops non-Euclidean geometry and geometry on surfaces at a level appropriate for undergraduate students who completed a multivariable calculus course and are ready to practice habits of thought needed in advanced undergraduate courses.

(

**1831**views)

**The Elements of Non-Euclidean Plane Geometry and Trigonometry**

by

**Horatio Scott Carslaw**-

**Longmans, Green and co.**

In this book the author has attempted to treat the Elements of Non-Euclidean Plane Geometry and Trigonometry in such a way as to prove useful to teachers of Elementary Geometry in schools and colleges. Hyperbolic and elliptic geometry are covered.

(

**5057**views)

**Euclid's Parallel Postulate: Its Nature, Validity and Place in Geometrical Systems**

by

**John William Withers**-

**Open Court Publishing Co.**

The parallel postulate is the only distinctive characteristic of Euclid. To pronounce upon its validity and general philosophical significance without endeavoring to know what Non-Euclideans have done would be an inexcusable blunder ...

(

**3184**views)

**Non-Euclidean Geometry**

by

**Henry Manning**-

**Ginn and Company**

This book gives a simple and direct account of the Non-Euclidean Geometry, and one which presupposes but little knowledge of Mathematics. The entire book can be read by one who has taken the mathematical courses commonly given in our colleges.

(

**9653**views)