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The nonlinear Sch\"{o}dinger equation (NLSE) with a non-Hermitian term is the model for various phenomena in nonlinear open quantum systems. We deal with the Cauchy problem for the nonlocal generalization of multidimensional NLSE with a…

Mathematical Physics · Physics 2024-03-08 A. E. Kulagin , A. V. Shapovalov

In this paper, we mainly focus on the Cauchy problem of an integrable nonlocal Hirota equation with initial value in weighted Sobolev space. Through the spectral analysis of Lax pairs, we successfully transform the Cauchy problem of the…

Analysis of PDEs · Mathematics 2022-06-20 Jin-yan Zhu , Yong Chen

The numerical solution of differential equations can be formulated as an inference problem to which formal statistical approaches can be applied. However, nonlinear partial differential equations (PDEs) pose substantial challenges from an…

Numerical Analysis · Mathematics 2021-08-26 Junyang Wang , Jon Cockayne , Oksana Chkrebtii , T. J. Sullivan , Chris. J. Oates

This article investigates the existence and uniqueness of solutions to the second order Volterra integrodifferential equations with nonlocal and boundary conditions through its integral equivalent equations and fixed point of Banach.…

Classical Analysis and ODEs · Mathematics 2019-08-23 Pallavi U. Shikhare , Kishor D. Kucche , J. Vanterler da C. Sousa

We study the Cauchy problem for the defocusing nonlinear Schr\"odinger (NLS) equation under the assumption that the solution vanishes as $x \to + \infty$ and approaches an oscillatory plane wave as $x \to -\infty$. We first develop an…

Analysis of PDEs · Mathematics 2024-03-22 Samuel Fromm , Jonatan Lenells , Ronald Quirchmayr

The one-dimensional Dunkl operator $D_k$ with a non-negative parameter $k$, is considered under an arbitrary nonlocal boundary value condition. The right inverse operator of $D_k$, satisfying this condition is studied. An operational…

Classical Analysis and ODEs · Mathematics 2009-03-10 Ivan H. Dimovski , Valentin Z. Hristov

We investigate the effect of nonlocal conditions expressed by linear continuous mappings over the hypotheses which guarantee the existence of global mild solutions for functional-differential equations in a Banach space. A progressive…

Classical Analysis and ODEs · Mathematics 2024-05-14 Tiziana Cardinali , Radu Precup , Paola Rubbioni

The compact explicit expressions for formal exact operator solutions to Cauchy problem for sufficiently general systems of nonlinear differential equations (ODEs and PDEs) in the form of chronological operator exponents are given. The…

Mathematical Physics · Physics 2009-10-21 Yu. N. Kosovtsov

The existence of solutions to Cauchy type problems of linear Riemann-Liouville fractional differential equations with variable coefficients is considered in a space of integrable functions. First, we consider the existence and uniqueness of…

Classical Analysis and ODEs · Mathematics 2016-08-03 Myong-Ha Kim , Guk-Chol Ri , Gum-Song Choe , Hyong-Chol O

We derive the explicit solution operator of an abstract Cauchy problem involving a time-variable coefficient and a fractional power of an almost sectorial operator. The time-variable coefficient is recovered by solving the inverse abstract…

Analysis of PDEs · Mathematics 2026-02-26 Joel E. Restrepo

We consider numerical methods for linear parabolic equations in one spatial dimension having piecewise constant diffusion coefficients defined by a one parameter family of interface conditions at the discontinuity. We construct immersed…

Numerical Analysis · Mathematics 2013-10-31 V. A. Bokil , N. L. Gibson , S. L. Nguyen , E. A. Thomann , E. Waymire

This paper uses the resolvent operator technique to investigate second-order non-autonomous neutral integrodifferential equations with impulsive conditions in a Banach space. We study the existence of a mild solution and the system's…

Dynamical Systems · Mathematics 2023-12-05 Asma Afreen , Abdur Raheem , Areefa Khatoon

Consider an operator equation $F(u)=0$ in a real Hilbert space. The problem of solving this equation is ill-posed if the operator $F'(u)$ is not boundedly invertible, and well-posed otherwise. A general method, dynamical systems method…

Dynamical Systems · Mathematics 2009-11-10 A. G. Ramm

In this paper, the existence and uniqueness of the fixed point for the product of two nonlinear operator in Banach algebra is discussed. In addition, an approximation method of the fixed point of hybrid nonlinear equations in Banach…

Functional Analysis · Mathematics 2022-01-19 Khaled Ben Amara , Maria Isabel Berenguer , Aref Jeribi

This paper is concerned with solution in H\"{o}lder spaces of the Cauchy problem for linear and semi-linear backward stochastic partial differential equations (BSPDEs) of super-parabolic type. The pair of unknown variables are viewed as…

Analysis of PDEs · Mathematics 2016-02-10 Shanjian Tang , Wenning Wei

We present a general method of solving the Cauchy problem for a linear parabolic partial differential equation of evolution type with variable coefficients and demonstrate it on the equation with derivatives of orders two, one and zero. The…

Mathematical Physics · Physics 2016-05-18 Ivan D. Remizov

Developing an original idea of De Giorgi, we introduce a new and purely variational approach to the Cauchy Problem for a wide class of defocusing hyperbolic equations. The main novel feature is that the solutions are obtained as limits of…

Analysis of PDEs · Mathematics 2013-10-28 Enrico Serra , Paolo Tilli

In this work, we study the Cauchy problem for the spatially homogeneous non-cutoff Boltzamnn equation with Maxwellian molecules. We prove that this Cauchy problem enjoys Gelfand-Shilov regularizing effect, that means the smoothing…

Analysis of PDEs · Mathematics 2015-11-18 Leo Glangetas , Hao-Guang Li , Chao-Jiang Xu

We carry out an analysis of the existence of solutions for a class of nonlinear partial differential equations of parabolic type. The equation is associated to a nonlocal initial condition, written in general form which includes, as…

Analysis of PDEs · Mathematics 2022-02-16 Irene Benedetti , Simone Ciani

The Hamilton-Jacobi-Bellman equation arising from the optimal portfolio selection problem is studied by means of the maximal monotone operator method. The existence and uniqueness of a solution to the Cauchy problem for the nonlinear…

Mathematical Finance · Quantitative Finance 2023-08-08 Daniel Sevcovic , Cyril Izuchukwu Udeani