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Global monopole in Einstein-Cartan theory based on Lyra geometry

Farook Rahaman ; Khodar Bazar, Baruipur, Kolkata 700144, West Bengal, India; Department of Mathematics, Jadavpur University, Kolkata 700032, India
Samir Mal ; Department of Mathematics, Jadavpur University, Kolkata 700032, India

Sažetak

We present an approximate solution of Einstein - Cartan equations for the metric outside a monopole resulting from the breaking of a global O(3) symmetry based on Lyra's modified Riemannian geometry. It is interesting to note that unlike the general relativity case, the global monopole in Einstein - Cartan theory based on Lyra's geometry can have attractive as well as repulsive gravitational effect.

Ključne riječi

global monopole; Einstein - Cartan theory; Lyra geometry

Hrčak ID:

304075

URI

https://hrcak.srce.hr/304075

Datum izdavanja:

1.7.2002.

Podaci na drugim jezicima: hrvatski

Posjeta: 415 *