Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Rajkumar Roychoudhury"'
Publikováno v:
Astrophysics and Space Science. 365
Considering the dark matter as self-gravitating Bose-Einstein condensate in a gravito-chemical equilibrium state, we have studied the light trajectory through the halo. Found that depending on the initial direction cosine of the light ray, there are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08d970f49e3043d323defa7d8ccdad14
https://doi.org/10.1007/s10509-020-03826-1
https://doi.org/10.1007/s10509-020-03826-1
Publikováno v:
Chaos, Solitons & Fractals. 117:222-225
We have investigated the evolution of bright solitary wave (solitons) on a thin vortex filament under the action of time dependent damping in a superfluid at the zero temperature limit by exactly solving the damped-nonlinear Schrodinger equation (dNL
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af2f19ca0594b28c136631ccc0a3c1e6
https://doi.org/10.1016/j.chaos.2018.10.024
https://doi.org/10.1016/j.chaos.2018.10.024
This book includes speeches given during five seminar sessions held in honor of Prof. C. R. Rao, on his 100th year. This book also contains a few write-ups touching on the diverse aspects of this august personality. The chapters pay tribute to Prof.
Publikováno v:
Optics Communications. 393:224-231
Exact expressions are obtained for stationary periodic waves in cubic-quintic nonlinear media with opposite signs of nonlinearity. It is shown that defocussing/focussing quintic nonlinearity can lead to stabilization of snoidal/(cnoidal and dnoidal)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfa42a1a65200fa5aef35e55d87e081b
https://doi.org/10.1016/j.optcom.2017.02.060
https://doi.org/10.1016/j.optcom.2017.02.060
Publikováno v:
Physics Letters A. 381:639-645
The stability of a viscoelastic self-gravitating quantum fluid has been studied. Symmetry breaking instability of solitary wave has been observed through ‘viscosity modified Ostrovsky equation’ in weak gravity limit. In presence of strong gravita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b60e8b91ea87aac25df37b12d4b52100
https://doi.org/10.1016/j.physleta.2016.12.026
https://doi.org/10.1016/j.physleta.2016.12.026
Publikováno v:
Advances in Space Research. 58:1146-1154
We study the interplay between dispersion due to the electron degeneracy parameter and dissipation caused by plasma resistivity, in degenerate Fermi–Dirac Pauli quantum plasma. Considering relativistic degeneracy pressure for electrons, we investig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a1cfe2fe676e98b5880a458d6abc737
https://doi.org/10.1016/j.asr.2016.05.054
https://doi.org/10.1016/j.asr.2016.05.054
Publikováno v:
The European Physical Journal Plus. 133
A theoretical study is presented for the oblique propagation of linear and nonlinear electron acoustic waves (EAWs) in a two-electron population, dissipative, quantum magnetoplasma. The linear dispersion relation yields a complex plasma wave frequenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::018c88a0a6294928675a455dd1de67ba
https://doi.org/10.1140/epjp/i2018-12167-x
https://doi.org/10.1140/epjp/i2018-12167-x
Publikováno v:
Chaos, Solitons & Fractals. 81:91-97
Localized and periodic solutions for the nonlinear Schrodinger equation with spatially modulated nonlinearity are found. A linear stability analysis corroborated by direct numerical simulation reveals that the regions of stability of these solutions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4c7952619419519188f9c53992474aa
https://doi.org/10.1016/j.chaos.2015.08.025
https://doi.org/10.1016/j.chaos.2015.08.025
Publikováno v:
Journal of Quantitative Linguistics. 22:157-176
Words in a language are related to each other. This relation is based on their conceptual properties. (This paper avoids using the term “semantic property”, generally used by the contemporary NLP workers for measuring distance between words, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b469bc215387395cd4d5eb4e67f135e2
https://doi.org/10.1080/09296174.2014.1001638
https://doi.org/10.1080/09296174.2014.1001638
Autor:
Anjana Sinha, Rajkumar Roychoudhury
Publikováno v:
International Journal of Theoretical Physics. 54:3991-4004
In this work we study scattering in a 𝓟𝓣 symmetric periodic optical lattice, when two coherent beams are incident on it from two opposite directions. We focus our attention on both 𝓟𝓣 broken as well as 𝓟𝓣 unbroken phase, with specia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c08aaccb75def3b4fc5c83e67b0042
https://doi.org/10.1007/s10773-014-2433-x
https://doi.org/10.1007/s10773-014-2433-x