Results 1 to 10 of about 1,794 (75)

Proper homothetic vector fields of Bianchi type I spacetimes via Rif tree approach

Results in Physics, 2021
This paper deals with the study of homothetic vector fields of Bianchi type I spacetimes using Rif tree approach. Instead of directly integrating the homothetic symmetry equations, a computer algorithm is used to transform these equations to the reduced ...
Ashfaque Hussain Bokhari, Tahir Hussain
exaly   +3 more sources

Killing vector fields of locally rotationally symmetric Bianchi type V spacetime [PDF]

Scientific Reports
The classification of locally rotationally symmetric Bianchi type V spacetime based on its killing vector fields is presented in this paper using an algebraic method.
Shakeel Ahmad, Tahir Hussain, Abdul Baseer Saqib, Muhammad Farhan, Muhammad Farooq   +4 more
doaj   +2 more sources

Transformation of Bianchi for Minding Top

Дифференциальная геометрия многообразий фигур, 2021
The work is devoted to the study of the Bianchi transform for surfac­es of revolution of constant negative Gaussian curvature. The surfaces of rotation of constant negative Gaussian curvature are the Minding top, the Minding coil, the pseudosphere ...
M.A. Cheshkova
doaj   +1 more source

Bianchi transformation of the pseudosphere

Дифференциальная геометрия многообразий фигур, 2023
The work is devoted to the study of the Bianchi transform for surfa­ces of constant negative Gaussian curvature. The surfaces of rotation of cons­tant negative Gaussian curvature are the Minding top, the Minding coil, the pseudosphere (Beltrami surface).
M. A. Cheshkova
doaj   +1 more source

Integration the relativistic wave equations in Bianchi IX cosmology model [PDF]

Компьютерные исследования и моделирование, 2016
We consider integration Clein-Gordon and Dirac equations in Bianchi IX cosmology model. Using the noncommutative integration method we found the new exact solutions for Taub universe. Noncommutative integration method for Bianchi IX model is based on the
Alexander Igorevich Breev, Aleksandr Vasilievich Shapovalov, Alexey Vadimovich Kozlov   +2 more
doaj   +1 more source

Bianchi transformation of the Minding coil

Дифференциальная геометрия многообразий фигур
The work is devoted to the study of the Bianchi transform for surfac­es of constant negative Gaussian curvature. The surfaces of rotation of constant negative Gaussian curvature are the Mining top, the Minding coil, the pseudosphere (Beltrami surface ...
M. A. Cheshkova
doaj   +1 more source

Exact LRS Bianchi type I solutions in quadratic F(R) gravity from homothetic symmetries: A Rif tree approach

Nuclear Physics B
This study is concern to the homothetic symmetry approach to get exact solutions for locally rotationally symmetric (LRS) Bianchi type-I spacetimes within the framework of f(R) gravity, revealing that such spacetimes posses homothetic symmetry of ...
Jamshed Khan, Sumaira Saleem Akhtar, Ambreen Ayub   +2 more
doaj   +1 more source

Toward equitable and evidence-based care in Hereditary Angioedema: Time for inclusive global guidelines. [PDF]

World Allergy Organ J
Morais-Almeida M, Giavina-Bianchi P, Ansotegui IJ, Ebisawa M, Fiocchi A, Martin BL, Wing-Kin Wong G.   +6 more
europepmc   +1 more source

Advanced Sensing Technology in Structural Health Monitoring. [PDF]

Sensors (Basel)
D'Emilia G, Natale E.
europepmc   +1 more source

Microwave-Assisted Subcritical Water Extraction Method for the Optimized Isolation of Cellulose From Residual Soybean Hulls. [PDF]

ChemSusChem
Rigoletto M, Tummino ML, Natali E, Angileri C, Grillo G, Tabasso S, Bortolotto V, Bianchi CL, Cravotto G, Laurenti E.   +9 more
europepmc   +1 more source