Pamphlet
发表于 2025-3-28 14:48:46
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Debate
发表于 2025-3-28 19:41:20
Linear Response, Bethe-Salpeter Equation, and Transport Coefficients, It is well known that the functional derivative of a single-particle Green’s function (linear response) is the same as a nonsymetrized two-particle Green’s function. This justifies the study of the Bethe-Salpeter equation.
预感
发表于 2025-3-29 02:47:21
The Description of Particles of Arbitrary Spin, makes it essential to give fresh consideration to higher-spin wave equations, which had earlier suffered from neglect as much due to fact that no higher-spin particles were then known, as due to the not-so-satisfactory nature of the theories themselves.
一大块
发表于 2025-3-29 05:24:11
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Blatant
发表于 2025-3-29 10:59:41
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Ceramic
发表于 2025-3-29 13:16:47
On Locally Isomorphic Groups and Cartan-Stiefel Diagrams,nected Lie) groups which are locally isomorphic to it are determined. The relations which hold among the members of such a set of groups—called a family—are given, i.e., the relations between a group, its covering groups, and its universal covering group are established.. For the semisimple compact
stressors
发表于 2025-3-29 17:26:36
Linear Response, Bethe-Salpeter Equation, and Transport Coefficients,. In this paper, we wish to point out some general features of this equation and stress its applicability in constructing a linearized kinetic equation with generalized kernel and in calculating the transport coefficients. We shall limit ourselves to a self-bounded infinite system, uniform in space
拖债
发表于 2025-3-29 21:48:57
The Description of Particles of Arbitrary Spin,rried on most intensively during the ‘thirties and ‘forties, and resulted in the discovery of a variety of equations with some claim to be considered as suitable for describing particles of any given spin. Since then, this field has appeared to be essentially a closed one, and it might seem inapprop
nettle
发表于 2025-3-30 01:27:54
Radiative Corrections in ,-Decay,r interaction it reads .where . is the ratio of the kinetic energy of the electron to its rest mass, . is the maximum value of this quantity, . is the mass of the proton, . is the mass of the electron, and . is a rather involved function of . This last expression contains Spence funtions and logarit
Jargon
发表于 2025-3-30 08:06:16
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