ISSN 2347-1921 1140 | Page March 11, 2014 Stability Analysis For Tumour Growth Model Through The Lambertz W Function M. Mohamed Sheriff 1 , N. S. Ravindran 2 , and P.Krishnapriya 3 1 Department of Mathematics, HKRH College Uthamapalayam-625 533, Theni, India, E.Mail:mmdsheriff @rediff mail.com. 2 Department of Mathematics Sourashtra College, Madurai - 625 004, E.Mail:nsravindran1960@gmail.com 3 Ramanujan Institute for Advanced Study in Mathematics, University of Madras, Chennai 600005, India, E.Mail: priyaprithu1205@gmail.com Abstract In this paper we investigate the stability of the tumor growth system. An approach of the matrix Lambert W function for the analytical solution to system of delay differential equations is applied to this problem and compared with the result obtained by a bifurcation analysis. Keywords: Delay differential equations; Tumor-growth; Stability; Bifurcation. Council for Innovative Research Peer Review Research Publishing System Journal: Journal of Advances in Mathematics Vol 7, No. 1 editor@cirworld.com www.cirworld.com , member.cirworld.com brought to you by CORE View metadata, citation and similar papers at core.ac.uk provided by KHALSA PUBLICATIONS