Representation formula
for traveling waves
to a derivative nonlinear Schrödinger equation
with the periodic boundary condition
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1.
Department of Applied Mathematics and Informatics, Ryukoku University, Seta, Otsu, 520-2194
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2.
Graduate School of Science Department of Mathematical and Life Sciences, Hiroshima University, Kagamiyama, Higashi-Hiroshima, 739-8526
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3.
Department of Applied Mathematics and Informatics, Ryukoku University, Seta, Otsu, Shiga 520-2194