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pro vyhledávání: '"Nath, Sujit Kumar"'
Autor:
Nath, Sujit Kumar
Continuum equations are ubiquitous in physical modelling of elastic, viscous, and viscoelastic systems. The equations of continuum mechanics take nontrivial forms on curved surfaces. Although the curved surface formulation of the continuum equations
Externí odkaz:
http://arxiv.org/abs/2407.13800
Autor:
Nath, Sujit Kumar, Sabhapandit, Sanjib
We study the late time exponential decay of the survival probability $S_\pm(t,a|x_0)\sim e^{-\theta(a)t}$, of a one-dimensional run and tumble particle starting from $x_0
Externí odkaz:
http://arxiv.org/abs/2405.18988
Autor:
Brook, Bindi S., Douglas, Graeham R., Jensen, Oliver E., Mistry, Sonal, Nath, Sujit Kumar, Russell, Matthew J., Saffaran, Sina, Shemilt, James, Weaver, Liam, Whitfield, Carl A.
This report relates to a study group hosted by the EPSRC funded network, Integrating data-driven BIOphysical models into REspiratory MEdicine (BIOREME), and supported by The Insigneo Institute and The Knowledge Transfer Network. The BIOREME network h
Externí odkaz:
http://arxiv.org/abs/2403.04621
Publikováno v:
Frontiers in Applied Mathematics and Statistics 3 June 2022
Model analogies and exchange of ideas between physics or chemistry with biology or epidemiology have often involved inter-sectoral mapping of techniques. Material mechanics has benefitted hugely from such interpolations from mathematical physics wher
Externí odkaz:
http://arxiv.org/abs/2201.04167
Publikováno v:
J. Phys. A: Math. Theor. 54 334001 (2021)
We study the effects of an intermittent harmonic potential of strength $\mu = \mu_0 \nu$ -- that switches on and off stochastically at a constant rate $\gamma$, on an overdamped Brownian particle with damping coefficient $\nu$. This can be thought of
Externí odkaz:
http://arxiv.org/abs/2104.00609
Covid-19 is raging a devastating trail with the highest mortality-to-infected ratio ever for a pandemic. Lack of vaccine and therapeutic has rendered social exclusion through lockdown as the singular mode of containment. Harnessing the predictive pow
Externí odkaz:
http://arxiv.org/abs/2009.05280
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Autor:
Nath, Sujit Kumar
Accretion disks are ubiquitous in astrophysics. They are found in active galactic nuclei, around newly formed stars, around compact stellar objects, like black holes, neutron stars etc. When the ambient matter with sufficient initial angular momentum
Externí odkaz:
http://etd.iisc.ernet.in/handle/2005/2886
http://etd.ncsi.iisc.ernet.in/abstracts/3748/G27751-Abs.pdf
http://etd.ncsi.iisc.ernet.in/abstracts/3748/G27751-Abs.pdf
We provide the possible resolution for the century old problem of hydrodynamic shear flows, which are apparently stable in linear analysis but shown to be turbulent in astrophysically observed data and experiments. This mismatch is noticed in a varie
Externí odkaz:
http://arxiv.org/abs/1608.00980
Publikováno v:
Phys. Rev. E 92 (2015) 023005
We investigate the evolution of hydromagnetic perturbations in a small section of accretion disks. It is known that molecular viscosity is negligible in accretion disks. Hence, it has been argued that a mechanism, known as Magnetorotational Instabili
Externí odkaz:
http://arxiv.org/abs/1505.02874