{"product_id":"gravitational-lensing-and-optical-geometry-a-centennial-perspective-9783039432868","title":"Gravitational Lensing and Optical Geometry: A Centennial Perspective","description":"\u003cp\u003e • Author(s): Marcus C. Werner\u003cbr\u003e • Publisher: Mdpi AG\u003cbr\u003e • Publisher Imprint: Mdpi AG\u003cbr\u003e • BISAC: General\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\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","brand":"Mdpi AG","offers":[{"title":"Hardcover","offer_id":45414707200151,"sku":"9783039432868","price":3512.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9783039432868.webp?v=1767920584","url":"https:\/\/atlanticbooks.com\/products\/gravitational-lensing-and-optical-geometry-a-centennial-perspective-9783039432868","provider":"Atlantic Books","version":"1.0","type":"link"}