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SCALING TRANSFORMATIONS, HETERO-BACKLUND TRANSFORMATIONS AND SIMILARITY REDUCTIONS ON A (2+1)-DIMENSIONAL GENERALIZED VARIABLE-COEFFICIENT BOITI-LEON-PEMPINELLI SYSTEM FOR WATER WAVES

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (2)

To date, water waves are actively studied. On a (2+1)-dimensional generalized variable-coefficient Boiti-Leon-Pempinelli system for water waves, our s......

MATHEMATICAL AND NUMERICAL INVESTIGATIONS OF THE FRACTIONAL-ORDER EPIDEMIC MODEL WITH CONSTANT VACCINATION STRATEGY

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (2)

This work is devoted to find the reliable numerical solution of an epidemic model with constant vaccination strategy. For this purpose, a structure pr......

SUPER ROGUE WAVE STATES IN THE CLASSICAL MASSIVE THIRRING MODEL SYSTEM

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (3)

We obtain the exact explicit super rogue wave solutions of the classical massive Thirring model system, using a nonrecursive Darboux transformation me......

LINE STATES IN KAGOME LATTICE

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (3)

The line states in the Kagome lattice (KL) are studied both theoretically and numerically. Straight as well as zigzag line states in the different-bou......

BRIGHT-DARK SOLITONS OF THE TWO-COMPONENT NONLOCAL NONLINEAR SCHRODINGER EQUATIONS COUPLED TO BOUSSINESQ EQUATION

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (3)

Motivated by the potential applications of multi-component nonlocal nonlinear Schrodinger (NLS) and NLS-type equations in nonlinear optics, the twocom......

A SIMPLE COMPUTATIONAL APPROACH TO THE SUSCEPTIBLE-INFECTED-RECOVERED (SIR) EPIDEMIC MODEL VIA THE LAPLACE-ADOMIAN DECOMPOSITION METHOD

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (2)

The Susceptible-Infected-Recovered (SIR) epidemic model is extensively used for the study of the spread of infectious diseases. Even that the exact so......

SPECTRUM ANALYSIS AND ITS APPLICATIONS FOR WEIGHTED ITERATED PENTAGON NETWORKS

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (1)

More and more attention has been paid to complex networks because of their wide application in many areas. In the research of complex networks, an im-......

THE FRACTIONAL DYNAMICS OF A LINEAR TRIATOMIC MOLECULE

期刊: ROMANIAN REPORTS IN PHYSICS, 2021; 73 (1)

In this research, we study the dynamical behaviors of a linear triatomic molecule. First, a classical Lagrangian approach is followed which produces t......

NEGATIVE GENERATORS OF THE VIRASORO CONSTRAINTS FOR BKP HIERARCHY

期刊: ROMANIAN REPORTS IN PHYSICS, 2020; 72 (1)

We give a straightforward derivation of the string equation and Vi-rasoro constraints on the tau function of the BKP hierarchy by means of some specia......

SINE-GORDON BREATHERS AND FORMATION OF EXTREME WAVES IN SELF-INDUCED TRANSPARENCY MEDIA

期刊: ROMANIAN REPORTS IN PHYSICS, 2020; 72 (1)

We investigate the formation of optical extreme waves in a resonant two-level medium that entails the self-induced transparency (SIT) effect, within t......

SOLITONS OF THE COMPLEX NONLINEAR SCHRODINGER EQUATION WITH PARITY-TIME-SYMMETRIC LINEAR-NONLINEAR LATTICE POTENTIALS

期刊: ROMANIAN REPORTS IN PHYSICS, 2020; 72 (2)

By using an inverse method, we report families of exact soliton solutions of a generalized complex nonlinear Schrodinger equation with parity-time-sym......

VORTEX SOLUTIONS IN ATOMIC BOSE-EINSTEIN CONDENSATES VIA THE ADOMIAN DECOMPOSITION METHOD

期刊: ROMANIAN REPORTS IN PHYSICS, 2020; 72 (3)

We study the dynamics of vortices with arbitrary topological charges in weakly interacting Bose-Einstein condensates using the Adomian Decomposition M......

OPTICAL SOLITONS IN NON-KERR NONLINEAR MEDIA WITH AN IMPRINTED PARITY-TIME-SYMMETRIC MIXED LINEAR-NONLINEAR LATTICE

期刊: ROMANIAN REPORTS IN PHYSICS, 2020; 72 (4)

We study families of optical solitons that form in three different types of nonlinear media with parity-time-symmetric mixed linear-nonlinear lattice ......

STUDY ON PERIODIC INTERACTIONS OF OPTICAL SOLITONS IN DISPERSIVE OPTICAL FIBERS

期刊: ROMANIAN REPORTS IN PHYSICS, 2019; 71 (1)

The quality of optical communication systems can be effectively improved by controlling soliton interactions. In this paper, periodic interactions of ......

JIF:1.94

PT-SYMMETRIC OPTICAL MODES AND SPONTANEOUS SYMMETRY BREAKING IN THE SPACE-FRACTIONAL SCHRODINGER EQUATION

期刊: ROMANIAN REPORTS IN PHYSICS, 2019; 71 (2)

We numerically investigate the parity-time (PT) symmetric optical modes in the space-fractional Schrodinger equation. The PT-symmetric optical modes a......

JIF:1.94

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