一夫一妻制
发表于 2025-3-25 03:37:15
Introduction,, it is a fairly accurate description of the macroscopic world, be it star formation, black holes and gravitational waves, or practical daily applications like satellite navigation and GPS. On the other hand, the mathematics of the Einstein-Hilbert theory fails to provide a pathway to the microscopi
Pruritus
发表于 2025-3-25 09:13:18
Relativistic Space-Times,alf-integer spin. The term tetrad or vierbein goes back to the German expression . (accompanying four-leg) for a system of orthonormal basis vectors following a curve embedded in a curvilinear four-dimensional Euclidian space. Applying this concept in pseudo-Riemannian and Riemann-Cartan geometries
PLUMP
发表于 2025-3-25 12:44:45
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抛射物
发表于 2025-3-25 19:34:37
Book 2023eir transformations, relativistic kinematics, and aspects of non-flat space-time geometries. The definition of relevant physical quantities (torsion, curvature, non-metricity, tetrads, connection fields etc.) and important geometry concepts are also included. The main body of the book is devoted to
Albinism
发表于 2025-3-25 22:55:17
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N防腐剂
发表于 2025-3-26 02:06:58
Relativistic Space-Times,ometry. Hence, in order to settle on a common understanding of the concept of curved spacetime, we first revisit the relevant definitions and relations. For more details we have to refer to textbooks on differential geometry (for example [., .]).
宽敞
发表于 2025-3-26 07:35:21
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栏杆
发表于 2025-3-26 12:09:57
2522-8900understanding of dark energy and inflation.This book starts with the mathematical basis of the theory - i.e. provide a brief sketch of the theory of manifolds and frame bundles, tensors and their transformations, relativistic kinematics, and aspects of non-flat space-time geometries. The definition
Antioxidant
发表于 2025-3-26 14:47:02
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闪光东本
发表于 2025-3-26 17:55:21
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