{"product_id":"gravitational-lensing-and-optical-geometry-a-centennial-perspective-9783039432868","title":"Gravitational Lensing and Optical Geometry: A Centennial Perspective","description":"\u003cp\u003eThe year 2019 saw the centenary of Eddington's eclipse expeditions and the corroboration of Einstein's general relativity by gravitational lensing. To mark the occasion, a Special Issue of Universe has been dedicated to the theoretical aspects of strong gravitational lensing. The articles assembled in this volume contain original research and reviews and apply a variety of mathematical techniques that have been developed to study this effect, both in 3-space and in spacetime. These include: - Mathematical properties of the standard thin lens approximation, in particular caustics; - Optical geometry, the Gauss-Bonnet method and related approaches; - Lensing in the spacetime of general relativity and modified theories; black hole shadows.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Mdpi AG\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 12\/08\/2020\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9783039432868\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 128\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.06lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.61h x 6.69w x 0.50d","brand":"Marcus C. Werner","offers":[{"title":"Default Title","offer_id":44792513102005,"sku":"9783039432868","price":39.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/0804\/6492\/files\/img_a5426033-a182-4649-b0dc-3636ada4f23b.jpg?v=1731426439","url":"https:\/\/pastforward.org\/products\/gravitational-lensing-and-optical-geometry-a-centennial-perspective-9783039432868","provider":"Past Forward","version":"1.0","type":"link"}