LAUSR

Non-static conformally flat spherically symmetric space-times in Einstein–Cartan theory

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0 Published in 2019 at "Chinese Journal of Physics"

DOI: 10.1016/j.cjph.2019.03.010

Abstract: Abstract By exploiting the null tetrad formalism of Jogia and Griffiths and the technique of differential forms on a non-Riemannian space-time, non-static conformally flat, Petrov-type D, spherically symmetric solutions of the Einstein–Cartan field equations; when… read more here.

Keywords: spherically symmetric; conformally flat; einstein cartan; non static ... See more keywords

Well-posedness of the anomalous Fokker-Planck equation for Brownian yet non-Gaussian diffusion in non-static media

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0 Published in 2025 at "Journal of Mathematical Physics"

DOI: 10.1063/5.0225602

Abstract: In this paper, we establish the well-posedness of the Fokker-Planck equation governing the anomalous dynamics of a polymer center of mass in non-static media, which exhibits a one-way coupling system of Brownian non-Gaussian diffusion equation… read more here.

Keywords: equation; static media; well posedness; fokker planck ... See more keywords

Calibration of hygrometers at non-static conditions

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0 Published in 2019 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/ab56a6

Abstract: Current practice of calibrating humidity sensors at discrete measurement points under static conditions is time consuming, i.e. expensive, due to the long stabilization times. In order to reduce the calibration time, we introduce a new… read more here.

Keywords: static conditions; non static; time; calibration ... See more keywords

Homothetic Ricci collineations of non-static spherically symmetric spacetimes with perfect fluid matter

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0 Published in 2018 at "Modern Physics Letters A"

DOI: 10.1142/s0217732318501961

Abstract: Non-static spherically symmetric spacetimes with perfect fluid matter are considered and their homothetic Ricci collineations (HRCs) are investigated for degenerate as well as non-degenerate Ricci tensor. The present analysis shows that, for non-degenerate Ricci tensor,… read more here.

Keywords: spherically symmetric; ricci; non static; symmetric spacetimes ... See more keywords