{"product_id":"an-introduction-to-phase-integral-methods-9780486497426","title":"An Introduction to Phase-Integral Methods","description":"The phase-integral method in mathematics, also known as the Wentzel-Kramers-Brillouin (WKB) method, is the focus of this introductory treatment. Author John Heading successfully steers a course between simplistic and rigorous approaches to provide a concise overview for advanced undergraduates and graduate students in mathematics and physics. \u003cbr\u003eSince the number of applications is vast, the text considers only a brief selection of topics and emphasizes the method itself rather than detailed applications. The process, once derived, is shown to be one of essential simplicity that involves merely the application of certain well-defined rules. Starting with a historical survey of the problem and its solutions, subjects include the Stokes phenomenon, one and two transition points, and applications to physical problems. An appendix and bibliography conclude the text.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Dover Publications\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 04\/17\/2013\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9780486497426\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 160\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.35lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 7.90h x 5.00w x 0.40d","brand":"John Heading","offers":[{"title":"Default Title","offer_id":38350181892277,"sku":"9780486497426","price":12.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/0804\/6492\/products\/img_92ca7dcc-4c09-4f21-894f-e871875d73da.jpg?v=1611643885","url":"https:\/\/pastforward.org\/products\/an-introduction-to-phase-integral-methods-9780486497426","provider":"Past Forward","version":"1.0","type":"link"}