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M. Kalam

Publications and source records attributed to M. Kalam.

43 records · Page 3Linked to original sources
arXiv2006

Thin shell wormholes in higher dimensiaonal Einstein-Maxwell theory

We construct thin shell Lorentzian wormholes in higher dimensional Einstein-Maxwell theory applying the ' Cut and Paste ' technique proposed by Visser. The linearized stability is analyzed under radial perturbations around some assumed higher dimensional spherically symmetric static solution of the Einstein field equations in presence of Electromagnetic field. We determine the total amount of exotic matter, which is concentrated at the wormhole throat.

gr-qc↗
arXiv2006

Non static local string in higher dimensional gravity

We analyze the space-time structure of local gauge string with a phenomenological energy momentum tensor, as prescribed by Vilenkin in an arbitrary number of space-time dimensions with a non-zero cosmological constant >. A set of solutions of full non-linear Einstein's equations for the interior region of such a string are presented.

gr-qc↗
arXiv2006

Local cosmic string and C-field

We investigate a local cosmic string with a phenomenological energy momentum tensor as prescribed by Vilenkin, in presence of C-field . The solutions of full nonlinear Einstein's equations for exterior and interior regions of such a string are presented.

gr-qc↗