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A procedure is presented for solving the Fokker-Planck equation with constant diffusion but non-stationary drift. It is based on the correspondence between the Fokker-Planck equation and the non-stationary Schr\"odinger equation. The…

Mathematical Physics · Physics 2024-03-15 Choon-Lin Ho

Discrete versions of the Laplace and Dirac operators haven been studied in the context of combinatorial models of statistical mechanics and quantum field theory. In this paper we introduce several variations of the Laplace and Dirac…

Mathematical Physics · Physics 2022-03-08 Beata Casiday , Ivan Contreras , Thomas Meyer , Sabrina Mi , Ethan Spingarn

In this paper we present an explicit construction for the fundamental solution to the Dirac and Laplace operator on some non-orientable conformally flat manifolds. We first treat a class of projective cylinders and tori where we can study…

Differential Geometry · Mathematics 2011-02-22 Rolf Sören Krausshar

We present a new parallel numerical method for solving the non-stationary Schr\"odinger equation with linear nonlocal condition and time-dependent potential which does not commute with the stationary part of the Hamiltonian. The given…

Numerical Analysis · Mathematics 2018-09-21 Dmytro Sytnyk

We study the higher-order fractional Schr\"odinger equation with local nonlinear perturbations and investigate both the forward and inverse problems. We establish both the Sobolev $H^s$ and H\"older $C^s$ estimates for the well-posedness of…

Analysis of PDEs · Mathematics 2025-11-10 Giovanni Covi , Ru-Yu Lai , Lili Yan

This work is devoted to the advanced study of Roper--Suffridge type extension operators. For a given non-normalized spirallike function (with respect to an interior or boundary point) on the open unit disk of the complex plane, we construct…

Complex Variables · Mathematics 2012-02-15 Mark Elin , Marina Levenshtein

We solve the non-linear monopole equation of the Born-Infeld theory to all orders in the NS 2-form and give physical implications of the result. The solution is constructed by extending the earlier idea of rotating the brane configuration…

High Energy Physics - Theory · Physics 2009-10-31 Sanefumi Moriyama

In this paper, we investigate the numerical solutions of the cubic nonlinear Schrodinger equation via the exponential B-spline collocation method. Crank-Nicolson formulas are used for time discretization of the target equation. A…

Numerical Analysis · Mathematics 2016-07-04 Ozlem Ersoy , Idris Dag , Ali Sahin

We realize an extended version of the trigonometric Cherednik algebra as affine Dunkl operators involving Heaviside functions. We use the quadratic Casimir element of the extended trigonometric Cherednik algebra to define an explicit…

Representation Theory · Mathematics 2020-06-09 Jonas T. Hartwig , Jasper V. Stokman

We give a factorization procedure for a strictly hyperbolic partial differential operator of second order with logarithmic slow scale coefficients. From this we can microlocally diagonalize the full wave operator which results in a coupled…

Analysis of PDEs · Mathematics 2017-06-27 Martina Glogowatz

We apply the Cartan-Kahler theorem for the k-Dirac operator studied in Clifford analysis and to the parabolic version of this operator. We show that for k = 2 the tableaux of the first prolongations of these two operators are involutive.…

Differential Geometry · Mathematics 2019-08-06 Tomas Salac

In this paper we develop linear transfer Perron Frobenius operator-based approach for optimal stabilization of stochastic nonlinear system. One of the main highlight of the proposed transfer operator based approach is that both the theory…

Optimization and Control · Mathematics 2019-03-20 Apurba Kumar Das , Arvind Raghunathan , Umesh Vaidya

We study analytically and numerically the existence and orbital stability of the peak-standing-wave solutions for the cubic-quintic nonlinear Schrodinger equation with a point interaction determined by the delta of Dirac. We study the cases…

Analysis of PDEs · Mathematics 2018-05-28 Jaime Angulo Pava , Cesar Adolfo Hernandez Melo

This work is a continuation and extension of the note published in the Russian Math Surveys 1997 n 6. For any pair of solutions of the spectral problem for the second order selfadjoint real Schrodinger Operator on the graph their Symplectic…

Mathematical Physics · Physics 2007-05-23 S. P. Novikov

The Dirac operator for a manifold Q, and its chirality operator when Q is even dimensional, have a central role in noncommutative geometry. We systematically develop the theory of this operator when Q=G/H, where G and H are compact…

High Energy Physics - Theory · Physics 2009-11-07 A. P. Balachandran , Giorgio Immirzi , Joohan Lee , Peter Presnajder

In this paper we introduce and study generally non-self-adjoint realizations of the Dirac operator on an arbitrary finite metric graph. Employing the robust boundary triple framework, we derive, in particular, a variant of the Birman…

Mathematical Physics · Physics 2025-04-09 Markus Holzmann , Václav Růžek , Matěj Tušek

For Dirac equation, operator-invariants containing explicit time-dependence in parallel to known time-dependent invariants of nonrelativistic Schr\"odinger equation are introduced and discussed. As an example, a free Dirac particle is…

Quantum Physics · Physics 2009-10-30 V. I. Man'ko , R. V. Mendes

The equation of the spin-$\frac{1}{2}$ particles in the Friedmann-Lema\^itre-Robertson-Walker spacetime is investigated. The retarded and advanced fundamental solutions to the Dirac operator and generalized Dirac operator as well as the…

Mathematical Physics · Physics 2021-08-13 Karen Yagdjian

Generalized Dirac equation with operator mass term is presented. Its solutions are non standard (ELKO) spinors which are eigenvectors of the charge conjugation and dual helicity operators. It is demonstrated that in spite of their non…

Mathematical Physics · Physics 2015-06-19 A. G. Nikitin

We introduce the notion of Schr\"odinger integral operators and prove sharp local and global regularity results for these (including propagators for the quantum mechanical harmonic oscillator). Furthermore we introduce general classes of…

Analysis of PDEs · Mathematics 2023-10-26 Alejandro J. Castro , Anders Israelsson , Wolfgang Staubach , Madi Yerlanov
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