• Abhishek Kumar Singh

Cosmic strings are important in the early stages of evolutions of the universe before the particle creation and can explain galaxy formation. Hence it is interesting to study string cosmology in higher-dimensional space–time. In this paper, it is observed that five dimensional Kaluza-Klein space-time in the presence of cosmic string in the frame work of Seaz and Ballester scalar tensor theory of gravitation, the string cosmological models corresponding to geometric string, Takabayasi’s string and Reddy string are remain same. Here we consider the five dimensional Kaluza-Klein metric and discuss a model universe with different situations, by solving the modified Einstein field equations within the frame work of Lyra geometry. The extra dimensions play a physical role and they are being too small are unobservable. The explicit solutions of the scale factor are found via the assumption R=∛(Ay+M). We obtain many interesting realistic solutions governing the present day model of the universe. Also some physical and kinematical properties of the models are discussed

Cosmology, Five dimensional cosmological models, cosmic string, geometric string, Reddy string.

"Some Aspect of Higher Dimensional Cosmic String Model", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.644-651, August-2018, Available :http://www.jetir.org/papers/JETIR1808398.pdf

"Some Aspect of Higher Dimensional Cosmic String Model", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp644-651, August-2018, Available at : http://www.jetir.org/papers/JETIR1808398.pdf