Ellipsoidal harmonics : theory and applications The sphere is what might be called a perfect shape. Unfortunately nature is imperfect and many bodies are better represented by an ellipsoid. The theory of ellipsoidal harmonics originated in the nineteenth century could only be seriously applied with the kind of computational power available in recent years. This therefore is the first book devoted to ellipsoidal harmonics. Topics are drawn from geometry physics biosciences and inverse problems. It contains classical results as well as new material including ellipsoidal bi harmonic functions the theory of images in ellipsoidal geometry and vector surface ellipsoidal harmonics which exhibit an interesting analytical structure. Extended appendices provide everything one needs to solve formally boundary value problems. End of chapter problems complement the theory and test the readers understanding. The book serves as a comprehensive reference for applied mathematicians physicists engineers and for anyone who needs to know the current state of the art in this fascinating subject