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Browsing by Subject "(2+1)-dimensional Nizhnik-Novikov-Veselov system"

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    On the exact solutions of nonlinear evolution equations by the improved tan(φ/2)-expansion method
    (Indian Acad Sciences, 2020-01-31) Özkan, Yeşim Sağlam; Yaşar, Emrullah; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Matematik Bölümü.; 0000-0002-1364-5137; G-5333-2017; AAG-9947-2021; 57193338830; 23471031300
    In this paper, the improved tan (φ/ 2)-expansion method (ITEM) is proposed to obtain more general exact solutions of the nonlinear evolution equations (NLEEs). This method is applied to the generalised Hirota–Satsuma coupled KdV (HScKdV) equation and (2 + 1)-dimensional Nizhnik–Novikov–Veselov (NNV) system. We have obtained four types of solutions of these equations such as hyperbolic, trigonometric, exponential and rational functions as an advantage of this method. These solutions include solitons, rational, periodic and kink solutions. Moreover, modulation instability is used to establish stability of the obtained solutions.