Bridging the gap between modern differential geometry and the mathematical physics of general relativity, this text, in its second edition, includes new and expanded material on topics such as the instability of both geodesic completeness and geodesic incompleteness for general space-times, geodesic connectibility, the generic condition, the sectional curvature function in a neighbourhood of degenerate two-plane, and proof of the Lorentzian Splitting Theorem.;Five or more copies may be ord...

A fun, rhyming story for ages 4-8 about learning to say you're sorry taught by the animals of the Sorry Safari: Monkeyshines, Tall Tale Giraffe, Laughing Hyena, Rob U. Raccoon, Cheater Cheetah and Bam Bam Ram. Kids love this book!