FIZIKA B 19 (2010) 1, 43-52

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FIVE-DIMENSIONAL STRING COSMOLOGICAL MODELS WITH MASSIVE SCALAR FIELD

GANESHWAR MOHANTYa and GAURANGA CHARANA SAMANTAb
a703, Rameswarpatna, Bhubaneswar-751002, India, and
P. G. Department of Mathematics, Sambalpur University, Jyoti Vihar-768019, India
E-mail address: [email protected]
bDepartment of Mathematics, Gandhi Institute for Technological Advancement, Madanpur-752054, India
E-mail address: [email protected]

Received 3 February 2010;     Revised manuscript received 7 April 2010
Accepted 19 May 2010     Online 28 May 2010

We have constructed five-dimensional plane-symmetric cosmological models in the presence of massive scalar field in Lyra manifold when the source of the gravitational field is a massive string with r = (1+w)l (Takabayasi string). The role of massive scalar field in the evolution of the universe has been studied. The physical and kinematical behavior of the models is discussed.

PACS numbers: 04.50.+h, 11.10.Lm, 98.80.Cq
UDC 524.83, 52-423

Keywords: Kaluza-Klein space-time, massive scalar field, Lyra manifold, string cosmology

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