Results 1 to 10 of about 1,033,260 (289)

Adjoint representations for SU(2), su(2) and sl(2)

open access: yesAl-Mustansiriyah Journal of Science, 2017
This work, presents four kinds of adjoint representations for the special unitary matrix Lie group SU(2) and the special unitary, special linear matrix Lie algebras su(2) and sl(2).
Saad Owaid, Zainab Subhi
doaj   +6 more sources

$SU(2)^2$-invariant $G_2$-instantons [PDF]

open access: yesMathematische annalen, 2016
61 pages; v3 minor changes: accepted in Mathematische ...
Lotay, J, Oliveira, G
openaire   +4 more sources

Proton decay in supersymmetric SU(4) c × SU(2) L × SU(2) R [PDF]

open access: yesJournal of High Energy Physics, 2020
We discuss proton decay in a recently proposed model of supersymmetric hybrid inflation based on the gauge symmetry SU(4) c × SU(2) L × SU(2) R . A U(1) R symmetry plays an essential role in realizing inflation as well as in eliminating some undesirable ...
George Lazarides   +2 more
doaj   +2 more sources

On the SU(2)×SU(2) symmetry in the Hubbard model

open access: yesOpen Physics, 2012
Abstract We discuss the one-dimensional Hubbard model, on finite sites spin chain, in context of the action of the direct product of two unitary groups SU(2)×SU(2). The symmetry revealed by this group is applicable in the procedure of exact diagonalization of the Hubbard Hamiltonian.
Jakubczyk Dorota, Jakubczyk Paweł
doaj   +2 more sources

Seepage analysis based on weak finite element method

open access: yesYantu gongcheng xuebao, 2023
In the design and operation management of hydraulic structures such as dams, gates and embankments, the seepage calculation plays a very important role. The current methods for seepage analysis are mainly based on the general finite element method. It is
HE Zhaokui 1, SU Baoyu 2, SHENG Jinchang 2, LUO Yulong 2
doaj   +1 more source

Experimental study on bearing capacity of composite foundation with plain concrete piles reinforced by border piles

open access: yesYantu gongcheng xuebao, 2023
In order to improve its reinforcement effects, the bearing mechanism of a composite foundation with plain concrete piles reinforced by border piles under large loads and rapid loading is studied.
LI Guowei 1, 2, SU Tong 2, 3, ZHOU Chuner 4, LI Linjie 2, XIONG Li 2
doaj   +1 more source

On spherical functions on the group SU(2) × SU(2) × SU(2) [PDF]

open access: yesFunctional Analysis and Its Applications, 2010
We consider the group G:= SU(2) × ... × SU(2) (l factors), where SU(2) is the group of unitary 2 × 2 matrices with unit determinant. Let K ≃ SU(2) be the diagonal subgroup of G. We obtain the generating function of all K-spherical functions on G.
openaire   +3 more sources

Rate-dependent experimental study on unsaturated coarse-grained soil controlled by matrix suction

open access: yesYantu gongcheng xuebao, 2023
To study the time-dependent deformation characteristics of high-fill subgrade in mountainous areas, the water-retention characteristics of coarse filler and a series of rate-dependent mechanical properties tests under constant suction are carried out for
YIN Fengjie 1, 2, CAI Guoqing 1, 2, SU Yanlin 1, 2, SHAN Yepeng 1, 2, LI Jian 1, 2
doaj   +1 more source

Elastic-viscoplastic constitutive model for overconsolidated unsaturated soils considering time effects and its verification

open access: yesYantu gongcheng xuebao, 2023
The time effects have a significant influence on the deformation characteristics of the overconsolidated unsaturated soils. Establishing an elastic-viscoplastic constitutive model for the overconsolidated unsaturated soils considering the time effects is
SU Yanlin 1, 2, CAI Guoqing 1, 2, LIU Yi 1, 2, SHAN Yepeng 1, 2, LI Jian 1, 2
doaj   +1 more source

Decomposition matrices for the square lattices of the Lie groups $$SU(2)\times SU(2)$$SU(2)×SU(2) [PDF]

open access: yesAnalysis and Mathematical Physics, 2019
A method for the decomposition of data functions sampled on a finite fragment of rectangular lattice is described. The symmetry of a square lattice in a 2-dimensional real Euclidean space is either given by the semisimple Lie group $$SU(2)\times SU(2)$$ or equivalently by the Lie algebra $$A_1\times A_1$$, or by the simple Lie group O(5) or its Lie ...
M. Bodner   +3 more
openaire   +1 more source

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