<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1258" altimg="si3.svg"><mml:mrow><mml:mi>P</mml:mi><mml:mi>T</mml:mi></mml:mrow></mml:math>-symmetric nonlocal Davey–Stewartson I equation: General lump-soliton solutions on a background of periodic line waves

Jiguang Rao, Jingsong He, Dumitru Mihalache, Yi Cheng