使害羞 发表于 2025-3-28 17:08:39

General Properties of Feedback Amplifiers,ns, and, MacDowell-Mansouri gauge theory of gravity are discussed. Three-dimensional dimensional reductions from the topological gravitational sector in four dimensions, enable to recuperate the 2+1 Chern-Simons gravity and the corresponding .-dual theory, from the notion of self-duality in the four

啤酒 发表于 2025-3-28 19:15:41

https://doi.org/10.1007/978-3-031-01831-2orm . . . . . ., where . . are Einstein spaces (.). The sigma-model representation for p-branes ansatz and exact solutions in the model are given (e.g. solutions depending on harmonic function, spherically symmetric ones and black holes). PPN parameters for 4-dimensional section of the metric are al

Debility 发表于 2025-3-29 02:00:25

Alex Abramovici Ph.D.,Jake Chapsky P.E.pal fiber bundle structure and the toroidal dimensional reduction process in order to study what modifications are obtained to the standard Einstein-Maxwell-dilaton theories. We obtain an effective four dimensional gravity theory endowed with a cosmological term, a scalar dilaton field, an Einstein

CAGE 发表于 2025-3-29 04:55:43

http://reply.papertrans.cn/32/3182/318153/318153_44.png

细颈瓶 发表于 2025-3-29 08:20:04

http://reply.papertrans.cn/32/3182/318153/318153_45.png

meritorious 发表于 2025-3-29 11:32:24

Introduction to Feedback Economics, work together. We present the complete solution to the 95% scalar field cosmological model in which the dark matter is modeled by a scalar field . with the scalar potential . and the dark energy is modeled by a scalar field ., endowed with the scalar potential .. This model has only two free parame

justify 发表于 2025-3-29 17:14:50

https://doi.org/10.1007/b117852tropic, and the Bianchi types I and II cosmologies with and without self interactions of the scalar field. The coupling function . is kept arbitrary and the self interacting potential is chosen to obtain exact solutions. Quantum wormholes and classical non-singular solutions are given.

草率女 发表于 2025-3-29 22:56:56

http://reply.papertrans.cn/32/3182/318153/318153_48.png

Harness 发表于 2025-3-30 01:19:54

http://reply.papertrans.cn/32/3182/318153/318153_49.png

魔鬼在游行 发表于 2025-3-30 06:32:17

http://reply.papertrans.cn/32/3182/318153/318153_50.png
页: 1 2 3 4 [5] 6
查看完整版本: Titlebook: Exact Solutions and Scalar Fields in Gravity; Recent Developments Alfredo Macias,Jorge L. Cervantes-Cota,Claus Lämme Book 2001 Springer Sci