Groups and Geometric Analysis: Integral Geometry, Invariant Differential Operators, and Spherical Functions by Sigurdur Helgason (Mathematical Surveys and Monographs, Volume 83)

Master the intricacies of group theory and geometric analysis with this comprehensive guide by Sigurdur Helgason. This edition delves into integral geometry, invariant differential operators, and spherical functions, providing a robust understanding of this field. Perfect for advanced students and researchers.