nonlinear steepest descent
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scholarly journals Long-Time Asymptotics of a Three-Component Coupled mKdV System

Mathematics ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 573 ◽  
Author(s):  
Wen-Xiu Ma
Keyword(s):  
Hilbert Problem ◽  
Descent Method ◽  
Steepest Descent ◽  
Steepest Descent Method ◽  
Time Asymptotics ◽  
Long Time ◽  
Long Time Asymptotics ◽  
Matrix Spectral Problem ◽  
Riemann Hilbert Problem ◽  
Nonlinear Steepest Descent

We present an application of the nonlinear steepest descent method to a three-component coupled mKdV system associated with a 4 × 4 matrix spectral problem. An integrable coupled mKdV hierarchy with three potentials is first generated. Based on the corresponding oscillatory Riemann-Hilbert problem, the leading asympototics of the three-component mKdV system is then evaluated by using the nonlinear steepest descent method.

scholarly journals Rarefaction waves for the Toda equation via nonlinear steepest descent

2018 ◽  
Vol 38 (4) ◽  
pp. 2007-2028 ◽  
Author(s):  
Iryna Egorova ◽  
◽  
Johanna Michor ◽  
Gerald Teschl ◽  
◽  
...  
Keyword(s):  
Steepest Descent ◽  
Rarefaction Waves ◽  
Toda Equation ◽  
Nonlinear Steepest Descent

scholarly journals Rarefaction waves of the Korteweg–de Vries equation via nonlinear steepest descent

2016 ◽  
Vol 261 (10) ◽  
pp. 5371-5410 ◽  
Author(s):  
Kyrylo Andreiev ◽  
Iryna Egorova ◽  
Till Luc Lange ◽  
Gerald Teschl
Keyword(s):  
Vries Equation ◽  
Steepest Descent ◽  
Rarefaction Waves ◽  
De Vries ◽  
Nonlinear Steepest Descent
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