Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Nandan, Roy"'
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 478
Ductile yielding of rocks and similar solids localize shear zones, which often show complex internal structures due to the networking of their secondary shear bands. Combining observations from naturally deformed rocks and numerical modelling, this s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca3c75da0984cd911dbcf3e6f156c91a
https://doi.org/10.1098/rspa.2022.0146
https://doi.org/10.1098/rspa.2022.0146
In this work we propose a simple general parametrization scheme of the Hubble parameter for the scalar field dark energy models. In our approach it is possible to incorporate both the quintessence and phantom scalar field in a single analytical schem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6ffa32c6a6c57730a5d4a6419d33ce7
In this work we present a new scheme to study the tachyon dark energy model using dynamical systems analysis by considering parametrization of the equation of state(EoS) of the dark energy. Both the canonical and phantom field dynamics are investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::546a8954ecb888ec205f098876f1c3cf
Publikováno v:
Physical Review D. 104
In this work, we study tracker phantom dark energy models with a general parameterization of the scalar potentials. Our analysis also considers the scenario of having both phantom field and the cosmological constant as the dark energy components. A d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cdf3c4008f2435c0a61ff7b6192c965
https://doi.org/10.1103/physrevd.104.123502
https://doi.org/10.1103/physrevd.104.123502
Publikováno v:
Journal of Geophysical Research: Solid Earth. 126
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d21c1e36b28848fb9b495a1899f2cee8
https://doi.org/10.1029/2021jb022578
https://doi.org/10.1029/2021jb022578
Autor:
Nandan Roy, L. Arturo Ureña-López
We study the dynamical properties of tracker quintessence models using a general parametrization of their corresponding potentials, and show that there is a general condition for the appearance of a tracker behavior at early times. Likewise, we deter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::725667f28bea16482bdcadb741f8b669
http://arxiv.org/abs/2007.08873
http://arxiv.org/abs/2007.08873
Development of brittle and brittle-ductile shear zones involve partitioning of large shear strains in bands, called C-shear bands (C-SB) nearly parallel to the shear zone boundaries. Our present work aims to provide a comprehensive understanding of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a1c33a981f3cb11f6e17fca6c7417a5
https://doi.org/10.5194/egusphere-egu2020-960
https://doi.org/10.5194/egusphere-egu2020-960
In this work we have performed the dynamical system analysis for steep(er) exponential potentials considering different values of the steepness index $n$. We have performed the analysis using centre manifold theory as well as by employing numerical m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dfef5a1447bfce1b719a3178834dff4
http://arxiv.org/abs/1903.02288
http://arxiv.org/abs/1903.02288
We present a new parameterization of quintessence potentials for dark energy based directly upon the dynamical properties of the equations of motion. Such parameterization arises naturally once the equations of motion are written as a dynamical syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63276800886f2ec113e3486a372b3ff2
http://arxiv.org/abs/1803.09204
http://arxiv.org/abs/1803.09204
Publikováno v:
INSPIRE-HEP
In this work, we have studied the effect of higher order perturbations, particularly the second order in details, on the sonic horizon. We have considered two different schemes of perturbations which are velocity potential perturbation and mass accel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b842425d4ccd88d7f9635d56b1387dfa