120 citations · 234 across the 11 of their papers we have counts for
4 papers · 1 filter
PT-invariant nonlocal variable-coefficient Fokas-Lenells equation: nonstandard Hirota bilinearization, symmetry-preserving and breaking multi-soliton solutions
Sagardeep Talukdar, Ramakrishnan R, Sudipta Nandy +1
In this paper, we explore a variable-coefficient Fokas-Lenells system with gain/loss. Applying a nonlocal symmetry reduction, the system leads to a PT-invariant variable-coefficien…
Integrable motion of curves associated with the Fokas-Lenells equation and related spin system
R. Ramakrishnan, Sagardeep Talukdar, M. Lakshmanan +1
In this article, we study the gauge equivalence between the integrable Fokas- Lenells equation (FLE) and an associated spin equation through a gauge transformation and the zero cur…
Nondegenerate soliton solutions in certain coupled nonlinear Schrödinger systems
S. Stalin, R. Ramakrishnan, M. Lakshmanan
In this paper, we report a more general class of nondegenerate soliton solutions, associated with two distinct wave numbers in different modes, for a certain class of physically im…
Nondegenerate solitons in Manakov system
S. Stalin, R. Ramakrishnan, M. Senthilvelan +1
It is known that Manakov equation which describes wave propagation in two mode optical fibers, photorefractive materials, etc. can admit solitons which allow energy redistribution…