{"product_id":"nonlinear-symmetries-and-nonlinear-equations-von-g-gaeta","title":"Nonlinear Symmetries and Nonlinear Equations","description":"The study of (nonlinear) dift\"erential equations was S. Lie's motivation when he created what is now known as Lie groups and Lie algebras; nevertheless, although Lie group and algebra theory flourished and was applied to a number of dift\"erent physical situations -up to the point that a lot, if not most, of current fun damental elementary particles physics is actually (physical interpretation of) group theory -the application of symmetry methods to dift\"erential equations remained a sleeping beauty for many, many years. The main reason for this lies probably in a fact that is quite clear to any beginner in the field. Namely, the formidable comple:rity ofthe (algebraic, not numerical!) computations involved in Lie method. I think this does not account completely for this oblivion: in other fields of Physics very hard analytical computations have been worked through; anyway, one easily understands that systems of dOlens of coupled PDEs do not seem very attractive, nor a very practical computational tool.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9789401044431\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9789401044431","offer_id":39415638589533,"sku":"9789401044431","price":53.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/a1a937b1-f822-49a9-b06a-7e3da9a32566.jpg?v=1772088417","url":"https:\/\/shop.autorenwelt.de\/en\/products\/nonlinear-symmetries-and-nonlinear-equations-von-g-gaeta","provider":"Autorenwelt Shop","version":"1.0","type":"link"}