Six-wave interaction on resonant nonlinearity in a waveguide with infinitely conducting surfaces by Valery V. Ivakhnik, Darkhan R. Kapizov, Vladimir I. Nikonov

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Positive Solutions of a Fractional Boundary Value Problem with Changing Sign Nonlinearity by Yongqing Wang, Lishan Liu, Yonghong Wu

“…We discuss the existence of positive solutions of a boundary value problem of nonlinear fractional differential equation with changing sign nonlinearity. …”
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Application of modified extended direct algebraic method to nonlinear fractional diffusion reaction equation with cubic nonlinearity by Muhammad Bilal, Alamgir Khan, Ikram Ullah, Hasib Khan, Jehad Alzabut, Hisham Mohammad Alkhawar

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Existence of Positive Solutions to Nonlinear Fractional Boundary Value Problem with Changing Sign Nonlinearity and Advanced Arguments by Zhaocai Hao, Yubo Huang

“…Our analysis relies on a nonlinear alternative of Leray-Schauder type. An example is given to illustrate our results.…”
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A New Topological Degree Theory for Perturbations of Demicontinuous Operators and Applications to Nonlinear Equations with Nonmonotone Nonlinearities by Teffera M. Asfaw

“…In addition, a new existence result is given concerning existence of weak solutions for nonlinear wave equation with nonmonotone nonlinearity.…”
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Existence and Uniqueness of Positive Solutions to Nonlinear Second Order Impulsive Differential Equations with Concave or Convex Nonlinearities by Lingling Zhang, Chengbo Zhai

“…Using a new fixed point theorem of generalized concave operators, we present in this paper criteria which guarantee the existence and uniqueness of positive solutions to nonlinear two-point boundary value problems for second-order impulsive differential equations with concave or convex nonlinearities.…”
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Use of a Strongly Nonlinear Gambier Equation for the Construction of Exact Closed Form Solutions of Nonlinear ODEs by M. P. Markakis

“…This treatment is applied to another nonlinear equation, subjected to the same general class as that of Gambier, by constructing step by step an appropriate analytical technique. …”
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Periodic solutions of nonlinear vibrating beams by J. Berkovits, H. Leinfelder, V. Mustonen

“…The aim of this paper is to prove new existence and multiplicity results for periodic semilinear beam equation with a nonlinear time-independent perturbation in case the period is not prescribed. …”
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Nonlinear Langevin dynamics via holography by Bidisha Chakrabarty, Joydeep Chakravarty, Soumyadeep Chaudhuri, Chandan Jana, R. Loganayagam, Akhil Sivakumar

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Observability of Nonlinear Fractional Dynamical Systems by K. Balachandran, V. Govindaraj, M. Rivero, J. A. Tenreiro Machado, J. J. Trujillo

“…We study the observability of linear and nonlinear fractional differential systems of order 0<α<1 by using the Mittag-Leffler matrix function and the application of Banach’s contraction mapping theorem. …”
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Discrete Derivative Nonlinear Schrödinger Equations by Dirk Hennig, Jesús Cuevas-Maraver

Subjects: “…discrete derivative nonlinear Schrödinger equations…”
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Nonlinear diffusion in three dimension case by Arvydas Juozapas Janavičius

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Parameters and solutions of linear and nonlinear oscillators by Rina Ling

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NONLINEAR PROPERTIES OF BARIUM TITANATE CERAMICS by IVAYLO LAZAROV, ANKA ZHEGLOVA

“… The materials based on barium titanate have nonlinear dependence of polarization on the intensity of the electrical field. …”
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On nonlinear Schrödinger problem with amplification process by Raimondas Čiegis, Genė Kairytė, Violeta Pakalnytė

“… In this paper we consider the nonlinear Schrödinger problem with amplification process. …”
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Nonlinear Analysis of Dynamical Complex Networks by Zidong Wang, Bo Shen, Hongli Dong, Jun Hu

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Dissipative nonlinear structures in tokamak plasmas by K. A. Razumova

“…A lot of different kinds of instabilities may be developed in high temperature plasma located in a strong toroidal magnetic field (tokamak plasma). Nonlinear effects in the instability development result in plasma self-organization. …”
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Nonlinear Functional Difference Equations with Applications by Hua Su, Yuriy V. Rogovchenko, Youssef Raffoul, Yanbin Sang, Fuyi Xu

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Epidemic models with nonlinear infection forces by Wendi Wang

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Nonlinear Fibre-Based Photonic Technologies by Sonia Boscolo, Juan Diego Ania Castañón, Christophe Finot, Miguel González Herráez

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