Hybrid Wave Solutions of a (2+1)-Dimensional 4th-order Evolution Equation using Bilinear Neural Network Method

Document Type : Research Paper

Authors

1 Department of Mathematics, ITER, SOA University, Bhubaneshwar, Odisha-751030, India.

2 Department of Mathematics, Comilla University, Cumilla, 3506, Bangladesh.

10.22034/cmde.2026.69195.3400

Abstract

In this work, we apply a novel analytical approach called bilinear neural network method to investigate the (2+1)-dimensional 4th-order nonlinear evolution equation. The single and double hidden-layers bilinear neural models are utilized to construct various analytical solutions for the considered equation. Specifically, four distinct exact solutions are derived for each single hidden-layer models (3-2-1 and 3-3-1), depicting periodic-lumps, kink-solitons, kink-types and breather wave structures. Similarly, three distinct exact solutions are obtained for each double hidden-layer models (3-2-2-1 and 3-2-3-1), depicting two-soliton interactions, rogue waves and periodic-lumps wave structures. All the obtained results reveal physically significant wave phenomena relevant to various nonlinear systems in fluid dynamics, optical fibers and plasma physics. To the best of our knowledge, the obtained solutions in this work are novel and not reported in existing literature. The bilinear neural network method offers a systematic and flexible approach for solving complex nonlinear models and can be extended to solve models with variable coefficients and fractional-order dynamics in the future.

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Articles in Press, Accepted Manuscript
Available Online from 08 February 2026
  • Receive Date: 17 September 2025
  • Revise Date: 27 January 2026
  • Accept Date: 03 February 2026