Book Review: An Introductory Treatise on the Lunar Theory

Abstract

rpHE researches made during the last twenty years into the particular case -*- of the Problem of Three Bodies, known as the Lunar Theory, have had the effect of creating a wider interest in a subject which had been somewhat neglected by the majority of mathematicians. Enquiry has been made, not only into the value of the various methods from a practical point of view, but also into questions which have an equal theoretical importance but which, until just lately, have been almost entirely neglected. The existence of integrals and of periodic solutions, and the representation of the solutions by infinite series, may be cited as instances.