Christian Gerhards Book order

Focusing on the principles of space and surface potential theory, this work delves into both Euclidean and spherical concepts. It provides a systematic and mathematically rigorous approach to addressing gravitation and geomagnetism, exploring how to handle relevant observables effectively. The authors establish a foundation in three-dimensional Euclidean space before transitioning to surface potential theory on the unit sphere, highlighting its applications in the context of gravitational and geomagnetic phenomena.