{"product_id":"calculus-of-variations-1","title":"Calculus Of Variations","description":"Based on a series of lectures given by I.M. Gelfand at Moscow State University, this book goes considerably beyond the material presented in the lectures. The aim is to give treatment of the elements of the calculus of variations in a clear and modern manner. Considerable attention is given to physical applications such as canonical equations, variational principles of mechanics, and conservation laws.\u003cbr\u003e\u003cbr\u003eThe first chapter is sufficient for those wanting to learn the basic concepts and methods of calculus of variations. The first six chapters provide a comprehensive university-level course, covering the theory of fields and conditions for weak and strong extrema. Chapter seven applies variational methods to systems with infinite degrees of freedom, and chapter eight discusses direct methods. The problems are tailored for this edition, and there are appendices and further reading suggestions.","brand":"bookshop.lol","offers":[{"title":"Thryft - Used (Like New)","offer_id":43654113591374,"sku":"9780486414485","price":13.9,"currency_code":"SGD","in_stock":false},{"title":"Thryft - Used (Very Good)","offer_id":43654113624142,"sku":"9780486414485","price":11.9,"currency_code":"SGD","in_stock":false},{"title":"Thryft - Used (Good)","offer_id":43654113656910,"sku":"9780486414485","price":10.9,"currency_code":"SGD","in_stock":false},{"title":"Thryft - Used (Well Read)","offer_id":43654113689678,"sku":"9780486414485","price":9.9,"currency_code":"SGD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/3857\/4926\/files\/263886_22e5bc2f-662c-449b-a410-fd6f4d7f256f.jpg?v=1776686931","url":"https:\/\/bookshop.lol\/products\/calculus-of-variations-1","provider":"bookshop.lol","version":"1.0","type":"link"}