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Integration over curved manifolds with higher codimension and, separately, discrete variants of continuous operators, have been two important, yet separate themes in harmonic analysis, discrete geometry and analytic number theory research.…

Number Theory · Mathematics 2020-06-18 Theresa C. Anderson , Eyvindur Ari Palsson , Angel V. Kumchev

We construct normalized differentials on families of curves of infinite genus. Such curves are used to investigate integrable PDE's such as the focusing Nonlinear Schr{\"o}dinger equation.

Analysis of PDEs · Mathematics 2010-02-16 T. Kappeler , P. Lohrmann , P. Topalov

Possibilities for defining the radial derivative of the delta distribution $\delta(\underline{x})$ in the setting of spherical coordinates are explored. This leads to the introduction of a new class of continuous linear functionals similar…

Classical Analysis and ODEs · Mathematics 2017-08-24 Fred Brackx , Frank Sommen , Jasson Vindas

We generalize the nonlinear one-dimensional equation for a fluid layer surface to any geometry and we introduce a new infinite order differential equation for its traveling solitary waves solutions. This equation can be written as a…

Mathematical Physics · Physics 2007-05-23 A. Ludu , A. R. Ionescu

Methods were developed in Ref. [1] for constructing reference metrics (and from them differentiable structures) on three-dimensional manifolds with topologies specified by suitable triangulations. This note generalizes those methods by…

General Relativity and Quantum Cosmology · Physics 2024-01-03 Lee Lindblom , Oliver Rinne

An analysis of a fractional cubic differential equation is presented, which is a generalization of different versions of fractional logistic equations, in order to obtain simpler numerical methods that globalize and extend the results…

Dynamical Systems · Mathematics 2021-04-12 Melani Barrios , Gabriela Reyero , Mabel Tidball

We study the convergence of solutions of the discrete nonlinear Klein-Gordon equation on an infinite lattice in the continuum limit, using recent tools developed in the context of nonlinear discrete dispersive equations. Our approach relies…

Analysis of PDEs · Mathematics 2024-02-22 Quentin Chauleur

By means of certain limit technique, two kinds of generalized Darboux transformations are constructed for the derivative nonlinear Sch\"odinger equation (DNLS). These transformations are shown to lead to two solution formulas for DNLS in…

Exactly Solvable and Integrable Systems · Physics 2013-08-16 Boling Guo , Liming Ling , Q. P. Liu

In this manuscript, we generalize F-calculus to apply it on fractal Tartan spaces. The generalized standard F-calculus is used to obtain the integral and derivative of the functions on the fractal Tartan with different dimensions. The…

Classical Analysis and ODEs · Mathematics 2018-01-31 Alireza Khalili Golmankhaneh

Starting from the standard form of the five discrete Painlev\'e equations we show how one can obtain (through appropriate limits) a host of new equations which are also the discrete analogues of the continuous Painlev\'e equations. A…

solv-int · Physics 2015-06-26 A. Ramani , B. Grammaticos

Inside the symmetric product of a very general curve, we consider the codimension-one subvarieties of symmetric tuples of points imposing exceptional secant conditions on linear series on the curve of fixed degree and dimension. We compute…

Algebraic Geometry · Mathematics 2016-02-03 Nicola Tarasca

The main purpose of present paper is to determine some lower bounds for the quotient of the normalized hyper-Bessel function and its partial sum, as well as for the quotient of the derivative of normalized hyper-Bessel function and its…

Complex Variables · Mathematics 2019-06-27 İbrahim Aktaş

We discuss some variants of cone theorem for movable curves in any codimensions.

Algebraic Geometry · Mathematics 2020-02-26 Sung Rak Choi , Yoshinori Gongyo

Given a smooth manifold $M$ (with or without boundary), in this paper we establish a global functional calculus (without the standard assumption that the operators are classical pseudo-differential operators) and the G\r{a}rding inequality…

Analysis of PDEs · Mathematics 2021-01-08 Duván Cardona , Vishvesh Kumar , Michael Ruzhansky , Niyaz Tokmagambetov

Factorizations over cones and their duals play central roles for many areas of mathematics and computer science. One of the reasons behind this is the ability to find a representation for various objects using a well-structured family of…

Optimization and Control · Mathematics 2025-02-18 Adam Brown , Kanstantsin Pashkovich , Levent Tunçel

We establish a microscopic convexity principle for nonlinear elliptic and parabolic partial differential equations in general form.

Analysis of PDEs · Mathematics 2015-05-13 Baojun Bian , Pengfei Guan

In this paper, we study possible extensions of the main ideas and methods of constrained DC optimization to the case of nonlinear semidefinite programming problems and more general nonlinear and nonsmooth cone constrained optimization…

Optimization and Control · Mathematics 2024-04-23 M. V. Dolgopolik

This paper is concerned with the directional derivative of the value function for a very general set-constrained optimization problem under perturbation. Under reasonable assumptions, we obtain upper and lower estimates for the upper and…

Optimization and Control · Mathematics 2023-11-08 Kuang Bai , Jane Ye

In this paper, we derive global bounds for the H\"older norm of the gradient of solutions of graphic mean curvature flow with boundary of arbitrary codimension.

Differential Geometry · Mathematics 2023-12-21 Qi Ding , J. Jost , Y. L. Xin

We obtain large deviations theorems for nonconventional sums with underlying process being a Markov process satisfying the Doeblin condition or a dynamical system such as subshift of finite type or hyperbolic or expanding transformation.

Probability · Mathematics 2013-02-21 Yuri Kifer , S. R. S. Varadhan