Description
Einstein showed how to interpret gravity as the dynamic response to the curvature of space-time. Bill Thurston showed us that non-Euclidean geometries and curvature are essential to the understanding of low-dimensional spaces. This third and final volume aims to give the reader a firm intuitive understanding of these concepts in dimension 2. The volume first demonstrates a number of the most important properties of non-Euclidean geometry by means of simple infinite graphs that approximate that geometry. This is followed by a long chapter taken from lectures the author gave at MSRI, which explains a more classical view of hyperbolic non-Euclidean geometry in all dimensions. Finally, the author explains a natural intrinsic obstruction to flattening a triangulated polyhedral surface into the plane without distorting the constituent triangles. That obstruction extends intrinsically to smooth surfaces by approximation and is called curvature. Gauss's original definition of curvature is extrinsic rather than intrinsic. The final two chapters show that the book's intrinsic definition is equivalent to Gauss's extrinsic definition (Gauss's "Theorema Egregium" ("Great Theorem")).
About the Author
James W. Cannon, Brigham Young University, Provo, UT.
Reviews
Like its predecessors, it is well written and full of exciting twists and turns, and will delight undergraduates, graduates, and those of us looking for something new to add to our geometry and topology classes." - Alan S. McRae, Mathematical Reviews
"The reviewer likes the geometric style of the book, written by an expert in this beautiful area of mathematics...Reading this book made me want to learn more about 3-dimensional geometry." - Joseph Malkoun, Zentralblatt MATH
"Many readers will be hooked by Cannon's aesthetics and proof exposition, where geometric intuition and topological arguments play leading roles...Cannon's books are worth every cent. I have in the past gifted Hilbert & Cohn-Voseen and Rademacher and Toeplitz to my students. Now I have Cannon's trio to add to my list of giftables." - Tushar Das, MAA Reviews
Book Information
ISBN 9781470437169
Author James W. Cannon
Format Paperback
Page Count 105
Imprint American Mathematical Society
Publisher American Mathematical Society
Weight(grams) 825g