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In this paper, we derive $C^2$ estimates for a class of mixed Hessian type equations with Dirichlet boundary condition, and obtain the existence theorem of admissible solutions for the classical Dirichlet problem of these mixed Hessian type…

Analysis of PDEs · Mathematics 2022-10-26 Xiaojuan Chen , Juhua Shi , Xiaocui Wu , Kang Xiao

In responding to a question on Math Stackexchange, the author formulated the problem of determining the number of strings of balls colored in most $n$ colors with a number $k$ of repeated colors. In this paper, we formulate the problem more…

Combinatorics · Mathematics 2019-02-22 Jeremy M. Dover

In the paper we study the 2D div-curl problem in the exterior domain which models the flow with given vorticity, divergency, boundary condition at infinity, and Dirichlet condition on the solid surface. We will find the relations on…

Analysis of PDEs · Mathematics 2025-12-02 Aleksei Gorshkov

In this paper we study the Dirichlet problem for a class of Hessian type equation with its structure as a combination of elementary symmetric functions on Hermitian manifolds. Under some conditions with the initial data on manifolds and…

Analysis of PDEs · Mathematics 2022-01-14 Qiang Tu , Ni Xiang

We solve the Dirichlet problem in the unit disc and derive the Poisson formula using very elementary methods and explore consequent simplifications in other foundational areas of complex analysis.

Complex Variables · Mathematics 2022-01-13 Steven R. Bell , Luis Reyna de la Torre

We consider the boundary value problem associated to the divergence operator with vanishing Dirichlet boundary conditions and we prove the existence of classical solutions under slight assumptions on the regularity of the datum.

Analysis of PDEs · Mathematics 2017-12-22 Luigi C. Berselli , Placido Longo

We consider an elliptic system with regular H{\"o}lderian weight and exponential nonlinearity or with weight and boundary singularity, and, Dirichlet condition. We prove the boundedness of the volume of the solutions to those systems on the…

Analysis of PDEs · Mathematics 2022-01-06 Samy Skander Bahoura

The exact solution of the Cauchy problem of the linear theory of elasticity is given in the paper, when the initial data belong to a specific class of functions.

General Mathematics · Mathematics 2017-06-09 Maksut M. Abenov , Nourlan B. Shaltykov

We consider the upper bound of Piltz divisor problem over number fields. Piltz divisor problem is known as a generalization of the Dirichlet divisor problem. We deal with this problem over number fields and improve the error term of this…

Number Theory · Mathematics 2019-10-30 Wataru Takeda

We investigate existence and uniqueness of solutions to the filtration equation with an inhomogeneous density in ${\mathbb R}^N$, approaching at infinity a given continuous datum of Dirichlet type.

Analysis of PDEs · Mathematics 2013-10-30 Gabriele Grillo , Matteo Muratori , Fabio Punzo

In this paper we consider the H\'enon problem in a ball. We prove the existence of (at least) one branch of nonradial solutions that bifurcate from the radial ones and that this branch is unbounded.

Analysis of PDEs · Mathematics 2020-01-27 Anna Lisa Amadori , Francesca Gladiali

Let $L$ be an infinitely degenerate second-order linear operator defined on a bounded smooth Euclidean domain. Under weaker conditions than those of H\"ormander, we show that the Dirichlet problem associated with $L$ has a unique smooth…

Analysis of PDEs · Mathematics 2016-09-07 Denis R. Bell , Salah E. -A. Mohammed

We obtain bounded for all $t$ solutions of ordinary differential equations as limits of the solutions of the corresponding Dirichlet problems on $(-L,L)$, with $L \rightarrow \infty$. We derive a priori estimates for the Dirichlet problems,…

Analysis of PDEs · Mathematics 2017-07-20 Philip Korman , Guanying Peng

We give a fast, exact algorithm for solving Dirichlet problems with polynomial boundary functions on quadratic surfaces in R^n such as ellipsoids, elliptic cylinders, and paraboloids. To produce this algorithm, first we show that every…

Classical Analysis and ODEs · Mathematics 2007-05-23 Sheldon Axler , Pamela Gorkin , Karl Voss

Some special solutions to the multidimensional Lam\'e and Bourlet type equations are constructed in an explicit form.

solv-int · Physics 2008-02-03 A. V. Razumov , M. V. Saveliev

In this paper, we prove the finiteness of the number of integer solutions of the decomposable form inequalities. We also study the number of integer solutions of a sequence of decomposable form inequalities.

Number Theory · Mathematics 2007-05-23 Kalman Gyory , Min Ru

In this paper, we study the exterior problem for the maximal surface equation. We obtain the precise asymptotic behavior of the exterior solution at infinity. And we prove that the exterior Dirichlet problem is uniquely solvable given…

Analysis of PDEs · Mathematics 2020-01-17 Guanghao Hong , Yu Yuan

We give a new and elementary proof that the number of elastic collisions of a finite number of balls in the Euclidean space is finite. We show that if there are $n$ balls of equal masses and radii 1, and at the time of a collision between…

Dynamical Systems · Mathematics 2018-04-13 Krzysztof Burdzy , Mauricio Duarte

We define the notion of infimum of a set of points with respect to the second order cone. This problem can be showed to be equivalent to the minimum ball containing a set of balls problem and to the maximum intersecting ball problem, as…

Optimization and Control · Mathematics 2022-02-23 Marta Cavaleiro , Farid Alizadeh

In this paper, we study the Dirichlet problem associated to the maximal surface equation. We prove the uniqueness of bounded solutions to this problem in unbounded domain in R^2.

Differential Geometry · Mathematics 2007-05-23 Laurent Mazet