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Related papers: The Neumann problem of Hessian quotient equations

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In this paper, we consider the Neumann problem for parabolic Hessian quotient equations. We show that the $k$-admissible solution of the parabolic Hessian quotient equation exists for all time and converges to the smooth solution of…

Analysis of PDEs · Mathematics 2024-04-23 Chuanqiang Chen , Xi-Nan Ma , Dekai Zhang

In this paper, we establish global C^2 estimates for a class of mixed Hessian equations with Neumann boundary condition, and obtain the existence theorem of k-admissible solutions for the classical Neumann problem of these mixed Hessian…

Analysis of PDEs · Mathematics 2020-03-12 Chuan-Qiang Chen , Li Chen , Ni Xiang

In this paper, we obtain some important inequalities for a class of Hessian quotient type operators $\frac{\sigma_k(\Lambda(D^2u))}{\sigma_l(\Lambda(D^2u))}$, which can be regarded as a generalization of the classical Hessian quotient…

Analysis of PDEs · Mathematics 2026-04-13 Jiabao Gong , Qiang Tu

In this paper, we establish a global $C^2$ estimates to the Neumann problem for a class of fullly nonlinear elliptic equations. By the method of continuity, we establish the existence theorem of $k$-admissible solutions of the Neumann…

Analysis of PDEs · Mathematics 2019-03-12 Bin Deng

In this paper, we consider the Neumann problem of a class of mixed complex Hessian equations, and establish the global C^1 estimates a nd reduce the global second derivative estimate to the estimate of double normal second derivatives on…

Analysis of PDEs · Mathematics 2020-03-16 Chuan-Qiang Chen , Li Chen , Ni Xiang

This paper studies the Neumann boundary value problem for sum Hessian equations. We first derive a priori $C^2$ estimates for $(k-1)$-admissible solutions in almost convex and uniformly $(k-1)$-convex domains, and prove the existence of…

Analysis of PDEs · Mathematics 2025-04-08 Weizhao Liang , Jin Yan , Hua Zhu

In this paper, we consider the Neumann problem for a class of Hessian quotient equations involving a gradient term on the right-hand side in Euclidean space. More precisely, we derive the interior gradient estimates for the $(\Lambda,…

Analysis of PDEs · Mathematics 2025-01-13 Jiabao Gong , Zixuan Liu , Qiang Tu

We derive a concavity inequality for $k$-Hessian operators under the semi-convexity condition. As an application, we establish interior estimates for semi-convex solutions of the $k$-Hessian equations with vanishing Dirichlet boundary and…

Analysis of PDEs · Mathematics 2025-02-18 Ruijia Zhang

In this paper, we prove the existence of a classical solution to a Neumann boundary problem for Hessian equations in uniformly convex domain. The methods depend upon the established of a priori derivative estimates up to second order. So we…

Analysis of PDEs · Mathematics 2024-04-22 Xi-Nan Ma , Guohuan Qiu

We study the Neumann problem for special Lagrangian type equations with critical and supercritical phases. These equations naturally generalize the special Lagrangian equation and the k-Hessian equation. By establishing uniform a priori…

Analysis of PDEs · Mathematics 2024-10-08 Guohuan Qiu , Dekai Zhang

In this paper, we consider the Dirichlet problem for a class of Hessian quotient equations on Riemannian manifolds. Under the assumption of an admissible subsolution, we solve the existence and the uniquness for the Dirichlet problem in a…

Analysis of PDEs · Mathematics 2021-05-20 Xiaojuan Chen , Qiang Tu , Ni Xiang

In this paper, we establish a priori estimates for a class of fully nonlinear equations with Neumann boundary conditions. By the continuity method, we have obtained the existence theorem for the Neumann problem.

Analysis of PDEs · Mathematics 2021-01-19 Chuan-Qiang Chen , Li Chen , Ni Xiang

In this paper, we study Hessian equations and complex quotient equations on closed Hermitian manifolds. We directly derive the uniform estimate for the admissible solution. As an application, we solve general Hessian equations on closed…

Analysis of PDEs · Mathematics 2015-02-11 Wei Sun

In this paper, we discuss the more general Hessian inequality $\sigma_{k}^{\frac{1}{k}}(\lambda (D_i (A\left(|Du|\right) D_j u)))\geq f(u)$ including the Laplacian, p-Laplacian, mean curvature, Hessian, k-mean curvature operators, and…

Differential Geometry · Mathematics 2022-05-18 Xiang Li , Jing Hao , Jiguang Bao

In this paper, we establish the existence and uniqueness theorem for solutions of the exterior Dirichlet problem for Hessian quotient equations with prescribed asymptotic behavior at infinity. This extends the previous related results on…

Analysis of PDEs · Mathematics 2017-09-15 Dongsheng Li , Zhisu Li

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 this work we consider the Neumann problem for the Laplace operator and we prove an existence result in the H\"older spaces and obtain Schauder estimates. According to our knowledge this result is not explicitly proved in the several…

Analysis of PDEs · Mathematics 2015-03-20 Giacomo Nardi

In this paper, we study the interior $C^2$ regularity problem for the Hessian quotient equation $\left(\frac{\sigma_n}{\sigma_k}\right)(D^2u)=f$. We give a complete answer to this longstanding problem: for $k=n-1,n-2$, we establish an…

Analysis of PDEs · Mathematics 2024-01-24 Siyuan Lu

The existence problem is solved, and global pointwise estimates of solutions are obtained for quasilinear and Hessian equations of Lane-Emden type, including the following two model problems: $ -\Delta_p u = u^q + \mu$ and $F_k[-u] = u^q +…

Analysis of PDEs · Mathematics 2007-05-23 Nguyen Cong Phuc , Igor E. Verbitsky

In this paper, we consider a kind of $k$-Hessian type equations $S_k^{\frac{1}{k}}(D^2u+\mu|D u|I)= f(u)$ in $\mathbb{R}^n$, and provide a necessary and sufficient condition of $f$ on the existence and nonexistence of entire admissible…

Analysis of PDEs · Mathematics 2022-08-24 Jingwen Ji , Feida Jiang , Mengni Li
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