Dr. Ramajayam Sahadevan , M.Sc;Ph.D.
Formar Director
Specialization :

Nonlinear Phenomena, Nonlinear Differential Equations, Integrable Systems and Mathematical Physics

Contacts :
Address:
Office
Ramanujan Institute for Advanced Study in Mathematics,
University of Madras,
Chepauk,
Chennai 600005.
Residence: 690,Flat 5,46th Street,
9th sector, K.K.Nagar,
Chennai 600 078,
Tamilnadu, India
Phone: Off : +91-44-2533 3381, Res: 044-24864350, Mobile: 09444835592
E-Mail: sahadevan@unom.ac.in,  ramajayamsaha@yahoo.co.in
Achievements
  • Visiting Professor, Sophia University, Japan from May 1 to June 30, 2006
  • INSA Visiting Scientist, University. of Surrey, UK from Nov. 12 to Dec.24,2005
  • Visiting Fellow, University of British Columbia, Vancouver, Canada from May 1 to June 28,2004 and Sep.2 to Dec.24,2002
  • Visiting Fellow, University. of Ghent, Belgium from Oct 1, 1997 to Apr.4,1998
  • Post Doctoral Fellow, La Trobe University, Melbourne, Australia from Sep. 26, 1991 to March 31,1994
  • Awarded the Tamilnadu Scientist Award (2002) recognizing research contributions in the field of Mathematical Sciences, by the Tamil Nadu State Council for Science and Technology, Government of Tamil Nadu, India.
  • Awarded the UGC National Hari OM Trust Award entitled Meghanand Saha Award in Theoretical Sciences (2007) recognizing scholarly research contributions in the field of Mathematical Sciences by University Grants Commission, New Delhi.
  • INSA Visiting Scientist, University. of Paderbon, Germany from Nov. 18 to Dec.22,2000
Membership
  • Member, Association of Intl. Mathematical Physicsts, U.S.A.
  • Member, American Mathematical Society, U.S.A.
Projects:
Title : Aspects of Integrable and Chaotic Discrete Systems funded by Council of Scientific and Industrial Research
Duration : 2007-2010
Funding Agency : CSIR,India
Amount Sanctioned (in Lakhs.) :
Title : Continuous Symmetries of Discrete Systems funded by Department of Science and Technology
Duration : 1998 - 01
Funding Agency : DST
Amount Sanctioned (in Lakhs.) :
Title : Discrete Painleve Property of Differential-Difference Equations funded by School of Mathematics, La Trobe University, Melbourne, Australia
Duration : 1992-1993
Funding Agency : School of Mathematics, La Trobe University, Melbourne, Australia
Amount Sanctioned (in Lakhs.) :
Title : Continuous Symmetries and Integration of Difference Equations funded by School of Mathematics, La Trobe University, Melbourne, Australia
Duration : 1991 - 1992
Funding Agency : School of Mathematics, La Trobe University, Melbourne, Australia
Amount Sanctioned (in Lakhs.) :
Books
  1. Nonlinear Systems and Dynamics, (Eds.) M.Lakshmanan and R.Sahadevan, Allied Publishers, Chennai (2006), India, )
  2. Nonlinear Systems, (Eds.) R.Sahadevan and M.Lakshmanan, Narosa Publishers, New Delhi (2002) India., )
  3. Nonlinear Dynamics: Integrability and Chaos (Eds.) M.Daniel, K.M.Tamizhmani and R.Sahadevan, Narosa Publishers, New Delhi (2000) India., )
Journals
  • R.Sahadevan and S.Rajakumar, Higher Dimensional Integrable Mappings Derived From Discrete Nonlinear Schrodinger Equations, J. Math. Phys. 50 (2009) 043502 (15 pages).,
  • Super Integrable Four Dimensional Autonomous mappings, H.W.Capel, R.Sahadevan and S.Rajakumar, J.Phys. A : Mathematical and Theoretical 40 (2007) 5373 - 5394.,
  • C.Uma Maheswari and R.Sahadevan, Integrable fourth order difference equations, J.Phys. A: Mathematical and Theoretical 43 (2010) 23503(13 pages),
  • C.Uma Mehaeswari and R.Sahadevan, On the Conservation Laws for Nonlinear partial Difference Equations, J.Phys. A: Mathematical and Theoretical 44(2011) 275203(16pages).,
  • R.Sahadevan and S.Balakrishnan, New Integrable Multicomponent nonlinear Partial Differential – Difference Equations, J. Nonlinear Math.Phys. 18 (2011) 501-518.,
  • Sahadevan and T.Bakkayaraj, Invariant Analysis of Time Fractional Generalised Burgers and Korteweg-de Vries Equations, J. Math. Anal. Appns. 393 ( 2012) 341- 347.,
Seminar / Conference / Workshop :
NATIONAL
  • XIII Ramanujan Symposium on Nonlinear Differential equations at University of Madras, Chennai, Tamilnadu, India during Feb.08-10,2006
  • Third National Conference on Nonlinear Systems and Dynamics at University of Madras, Chennai, Tamilnadu, India during Feb. 06 - 08, 2006
  • VIII Ramanujan Symposium on Recent Developments in Nonlinear Systems at University of Madras, Chennai , Tamilnadu, India during Feb.14-16,2001
  • Summer Training Program for P.G.Students in Tamilnadu from June 1 - 20, 2009
INTERNATIONAL
  • International conference on Nonlinear Dynamics : Integrability and Chaos at Bharathidasan University, Tiruchirapalli, Tamil, India during Feb. 12 - 16,1998
Positions
  • Visiting Professor, La Trobe University , Australia from September 1 to 30,1995
  • Visiting Professor, University of Amsterdam, The Netherlands from April 12 to May 24,1999
  • Visiting Professor, University of Amsterdam, The Netherlands from April 5 to May 12,2000
  • Visiting Professor, Flinders University , Australia from May 15 to June 18,2000
  • Visiting Professor, University of Adelaide, Australia from May 7 to June 16,2001
  • Visiting Professor, University of Sydney, Australia from Nov. 1 to 28,2003
  • Teaching Overseas - 2004 ( One Semester) – University of British Columbia, Vancouver, Canada
  • Teaching Overseas - 2002 ( One Semester) – University of British Columbia, Vancouver, Canada
Reviewers in Journals
Reviewer, Mathematical Reviews, American Mathematical Society, USA
Reviewer in Journal of Physics A;Journal of Mathematical Physics,;Physics Letters A; Journal of Mathematical Analysis and Applications; SIGMA; Nonlinearity;Inverse Problems;Pramana
Editorial Board
Editorial Board Member, Discrete Dynamics in Nature and Society, Hindawi, USA