Results 31 to 40 of about 174,545 (215)

Affine Generalized Ricci Solitons of Three-Dimensional Lorentzian Lie Groups Associated to Yano Connection

Journal of Nonlinear Mathematical Physics, 2023
In the present paper, we calculate Yano connection, its curvature and Lie derivative of metric associated to it on three-dimensional Lorentzian Lie groups with some product structure.
S. Azami
semanticscholar   +1 more source

Sub-Lorentzian Geometry of Curves and Surfaces in a Lorentzian Lie Group

Advances in Mathematical Physics, 2022
We consider the sub-Lorentzian geometry of curves and surfaces in the Lie group E 1 , 1
Haiming Liu, Jianyun Guan
openaire   +2 more sources

Classification of Lorentzian Lie Groups Based on Codazzi Tensors Associated with Yano Connections

Symmetry, 2022
In this paper, we derive the expressions of Codazzi tensors associated with Yano connections in seven Lorentzian Lie groups. Furthermore, we complete the classification of three-dimensional Lorentzian Lie groups in which Ricci tensors associated with ...
Jiajing Miao, Jinli Yang, J. Guan
semanticscholar   +1 more source

Geodesic completeness of some Lorentzian simple Lie groups

Journal of Lie Theory, 2020
22 ...
Ebrahimi, E., Kashani, S.M.B., Vanaei, Mohammad Javad   +2 more
openaire   +5 more sources

Unraveling Band-Tail Effects on Temperature-Dependent Emission in GaAsBi via Photoluminescence. [PDF]

Adv Sci (Weinh)
An innovative dual‐spectroscopy approach resolves the debate over GaAsBi's emission temperature sensitivity. By combining temperature‐dependent photoluminescence and transmission spectroscopy, the method decouples the contributions of band‐tail states from the intrinsic band‐edge behavior.
Yan B, Chen X, Zhu L, Wang L, Wang M, Wang S, Shao J.   +6 more
europepmc   +2 more sources

The Octonions [PDF]

, 2001
The octonions are the largest of the four normed division algebras. While somewhat neglected due to their nonassociativity, they stand at the crossroads of many interesting fields of mathematics.
Chang, Woo-Nyoung, Lee, Jae-Hyouk, Lee, Sung Hwan, Lee, Young Jun   +3 more
core   +10 more sources

Kerr-Schild Symmetries [PDF]

, 2000
We study continuous groups of generalized Kerr-Schild transformations and the vector fields that generate them in any n-dimensional manifold with a Lorentzian metric.
A. H. Taub, A. H. Thompson, A. K. Bilge, A. Trautman, B. C. Xanthopoulos, B. Coll, Bartolomé Coll, C. J. Talbot, D. Kramer, E. Nahmad-Achar, G. H. Katzin, G. Magli, J. Ehlers, J. Martín, José M. M. Senovilla, L. Defrise-Carter, L. Mas, L. Å. Gergely, P. C. Vaidya, P. C. Vaidya, P. C. Vaidya, R. P. Kerr, R. P. Kerr, R. P. Kerr, Sergi R. Hildebrandt   +24 more
core   +4 more sources

Generalized Lorentzian Ricci solitons on 3-dimensional Lie groups associated to the Bott Connection [PDF]

AUT Journal of Mathematics and Computing
In this paper, we investigate which one of the non-isometric left-invariant Lorentz metrics $g$ on $3$-dimensional Lie groups satisfies the generalized Ricci soliton equation $a{\rm Ric}^B [g] + \dfrac{b}{2}{\cal L}_{ X}^B g +cX^\flat\otimes X^\flat ...
Ghodratallah Fasihi Ramandi, Shahroud Azami, Vahid Pirhadi   +2 more
doaj   +1 more source

Einstein Lorentzian solvable unimodular Lie groups

, 2022
The goal of this paper is to show that many key results found in the study of Einstein Lorentzian nilpotent Lie algebras can still hold in the more general settings of unimodular Lie algebras and (completely) solvable Lie algebras.
openaire   +2 more sources

Complete classification of homogeneous structures on Lorentzian direct extensions of the Heisenberg group [PDF]

ریاضی و جامعه
The Heisenberg Lie group is one of the most famous and important Lie groups among the family of three dimensional Lie groups. The direct extension of this group to the fourth dimension was taken into consideration in the study of the nilpotent Lie ...
Amirhesam Zaeim, Mehdi Jafari, Moslem Baghgoli   +2 more
doaj   +1 more source