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Browsing by Author "Shadini, A.M.D.M."

Browsing by Author "Shadini, A.M.D.M."

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  • Effect of a long-ranged part of potential on elastic S-matrix element 
    Shadini, A.M.D.M.; Piyadasa, R.A.D.; Munasinghe, J. (Research Symposium 2010 - Faculty of Graduate Studies, University of Kelaniya, 2010)
    It has been found that quantum mechanical three-body Schrödinger equation can be reduced to a set of coupled differential equations when the projectile can be easily breakable into two fragments when it is scattering on ...
  • Effect of long-range part of the potential on the elastic S-matrix element 
    Shadini, A.M.D.M.; Munasingha, J. (Sri Lanka Association for the Advancement of Science, 2011)
    The quantum mechanical three-body Schrödinger equation can be reduced to a set of coupled differential equations when the projectile is easily breakable into two fragments and when scattering is a heavy stable nucleus. ...
  • Physically meaningful zeros and poles of elastic S-matrix element 
    Amarasinghe, A.V.D.S.; Katunatileke, N.G.A.; Shadini, A.M.D.M. (Sri Lanka Association for the Advancement of Science, 2011)
    It is found that an essential singularity is introduced at the origin of the complex k-plane in the S-matrix element in addition to the infinite number of zeros and poles apparently introduced due to the Coulomb potential. ...
  • A simple and short proof of Fermat’s last theorem for n = 3 
    Shadini, A.M.D.M.; Piyadasa, R.A.D. (Research Symposium 2010 - Faculty of Graduate Studies, University of Kelaniya, 2010)
    The first proof of Fermat’s last theorem for the exponent n  3 was given by Leonard Euler. However, Euler did not establish in full the key lemma required in the proof [1]. Since then, several authors have published ...
  • Simple proof of Fermat’s last theorem for n =11 
    Shadini, A.M.D.M.; Piyadasa, R.A.D. (Research Symposium 2010 - Faculty of Graduate Studies, University of Kelaniya, 2010)
    Proof of Fermat’s last theorem for any odd prime is difficult. It may be extremely difficult to generalize any available Proof of Fermat’s last theorem for small prime such as n  3,5,7 to n 11[1]. The prime n 11 is ...
  • Uniqueness of roots of a cubic and proof of Fermat‟s last theorem for n=3 
    Shadini, A.M.D.M.; Piyadasa, R.A.D.; Perera, B.B.U.P. (12th Annual Research Symposium, University of Kelaniya, 2011)
  • Useful identities in finding a simple proof for Fermat’s last theorem 
    Piyadasa, R.A.D.; Shadini, A.M.D.M.; Perera, B.B.U.P. (Research Symposium 2010 - Faculty of Graduate Studies, University of Kelaniya, 2010)
    Fermat’s last theorem, very famous and difficult theorem in mathematics, has been proved by Andrew Wiles and Taylor in 1995 after 358 years later the theorem was stated However, their proof is extremely difficult and ...

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