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Hong-Qian Sun

Publications and source records attributed to Hong-Qian Sun.

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A nonlocal coupled modified complex integrable dispersionless equation: Darboux transformation, soliton-type solutions and its asymptotic behavior

In this paper, we primarily construct Darboux transformation(DT) of the nonlocal coupled modified complex integrable dispersionless (cm-CID) equation, which is first proposed by the connection with a nonlocal coupled modified complex short pulse(cm-CSP) equation. Utilizing DT, we present soliton-type solutions for the nonlocal cm-CID equation under vanishing and non-vanishing boundary conditions. Soliton-type solutions include periodic wave, growing-, decaying-periodic wave, periodic-like wave (which consists of a mixture of periodic wave and breather wave, a combination of periodic wave and background plane), breather-like wave and rational solution. Furthermore, we have also analyzed asymptotic behavior and properties of these solutions theoretically and graphically. We must emphasis that soliton solutions of the nonlocal cm-CID equation possess novel properties that are distinct from those of the cm-CID equation, such as the nonlocal cm-CID equation has the growing-, decaying-periodic solution and periodic-like solution. The implications of these findings could potentially contribute to the description of optical pulse behavior during propagation in optical fibers.

nlin.SI

Darboux transformation and soliton solutions of the generalized Sasa-Satsuma equation

The Sasa-Satsuma equation, a higher-order nonlinear Schrödinger equation, is an important integrable equation, which displays the propagation of femtosecond pulses in optical fibers. In this paper, we investigate a generalized Sasa-Satsuma(gSS) equation. The Darboux transformation(DT) for the focusing and defocusing gSS equation is constructed. By using the DT, various of soliton solutions for the generalized Sasa-Satsuma equation are derived, including hump-type, breather-type and periodic soliton. Dynamics properties and asymptotic behavior of these soliton solutions are analyzed. Infinite number conservation laws and conserved quantities for the gSS equation are obtained.

nlin.SI