differentiable atlas
differentiable atlas
[‚dif·ə′ren·chə·bəl ′at·ləs] (mathematics)
A family of embeddings hi:En→M of euclidean space into a topological space M with the property that hi -1 hj:En→En is a differentiable map for each pair of indices, i, j.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.