By Peter E. Hydon

Symmetry is the most important to fixing differential equations. there are various famous recommendations for acquiring designated options, yet such a lot of them are certain situations of some strong symmetry equipment. in addition, those tools should be utilized to differential equations of an unusual sort; they don't depend upon designated 'tricks'. in its place, a given differential equation is pressured to bare its symmetries, that are then used to build special options. This booklet is a simple advent to the topic, and is aimed toward utilized mathematicians, physicists, and engineers. The presentation is casual, utilizing many labored examples to demonstrate the most symmetry equipment. it really is written at a degree compatible for postgraduates and complicated undergraduates, and is designed to permit the reader to grasp the most thoughts speedy and simply. The ebook includes equipment that experience now not formerly seemed in a textual content. those comprise tools for acquiring discrete symmetries and integrating factors.

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