Integrability and Group Theoretical Aspects of Deformed N-Coupled Hirota Equations
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The integrability and group theoretical aspects of deformed N-coupled Hirota equations are presented. We show that the deformed N-coupled Hirota equations admit a Lax representation along with differential constraints on the deforming functions. We observe that the differential constraints of deformed N-coupled Hirota equations and the differential constraints of deformed N-coupled nonlinear Schrödinger equations (N-coupled NLS) given in Suresh Kumar (Nonlinear Dyn 90:2783–2795, 2017) are one and the same. Further, we derive its Lie point symmetries and other consequences including exact solutions. We also report that the deformed N-coupled Hirota equations admit a trilinear representation and derived one and two soliton solutions.
KeywordsLax pair Lie point symmetries Integrability Deformed coupled Hirota equations Trilinear representation
The authors are thankful to the anonymous referees for their constructive suggestions. The first author (S.S) would like to thank the Management and Principal of C. Abdul Hakeem College(Autonomous), Melvisharam for their support and encouragement. The second author (R.S) is supported by University Grants Commission Emeritus Fellowship(New Delhi).
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