02702nam 2200637z- 450 991055710270332120210501(CKB)5400000000041020(oapen)https://directory.doabooks.org/handle/20.500.12854/69400(oapen)doab69400(EXLCZ)99540000000004102020202105d2020 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierGravitational Lensing and Optical GeometryA Centennial PerspectiveBasel, SwitzerlandMDPI - Multidisciplinary Digital Publishing Institute20201 online resource (128 p.)3-03943-286-9 3-03943-287-7 The 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.Gravitational Lensing and Optical Geometry Mathematics & sciencebicsscResearch & information: generalbicsscblack holeblack hole shadowblack holescausticsdark matterevent horizon telescopegalaxiesGauss-Bonnet theoremgeneral relativityglobal monopolegravitational lensgravitational lensingmagnification cross sectionsperfect fluidrotating black holescalar fieldshadowsstrong gravitational lensingultralight particlesweak deflectionwormholewormholesMathematics & scienceResearch & information: generalWerner Marcus Cedt1323014Werner Marcus CothBOOK9910557102703321Gravitational Lensing and Optical Geometry3035322UNINA