Multisoliton solutions to a nonisospectral (2+12+1)-dimensional breaking soliton equation

A nonisospectral (2+12+1)-dimensional breaking soliton equation ((2+12+1)DBSE) is derived, which corresponds to the spectral parameter λ   satisfying 2λλy−λt=λ22λλy−λt=λ2. The bilinear form for the nonisospectral (2+12+1)DBSE is obtained and the multisoliton solutions are worked out by means of the Hirota method and Wronskian technique, respectively. The nonisospectral (2+12+1)-dimensional breaking nonlinear Schrödinger equation and its multisoliton solutions are also presented by reduction.