Abstract
The paper Gao, Guo & Shan, Chin. J. Phys. 70 (2021) 264 has investigated an extended coupled (2+1)-dimensional Burgers system in oceanography, acoustics and hydrodynamics. However, studies on that system can be more complete. Therefore, for that system, we get the same bilinear forms through a different method, i.e., the Hirota method, and construct two sets of the similarity reductions with symbolic computation. Our similarity reductions depend on the constant coefficients in that system.
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