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Related papers: Hessian equations on closed Hermitian manifolds

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In this paper, we establish a priori estimates for solutions of a general class of fully non-linear equations on compact almost Hermitian manifolds. As an application, we solve the complex Hessian equation and the Monge--Amp\`ere equation…

Analysis of PDEs · Mathematics 2021-09-28 Jianchun Chu , Liding Huang , Jiaogen Zhang

In this paper, we establish an a priori second-order estimate for admissible solutions satisfying a dynamic plurisubharmonic condition to equations involving sums of Hessian operators on compact Hermitian manifolds. The estimate is derived…

Analysis of PDEs · Mathematics 2026-03-20 Weisong Dong , Ruijia Zhang

We introduce a very simple, exactly solvable PT-symmetric non-Hermitian model with real spectrum, and derive a closed formula for the metric operator which relates the problem to a Hermitian one.

Mathematical Physics · Physics 2009-11-11 D. Krejcirik , H. Bila , M. Znojil

In this paper, we generalize all the results obtained on para-K\"ahler Lie algebras in Journal of Algebra {\bf 436} (2015) 61-101 to para-K\"ahler Lie algebroids. In particular, we study exact para-K\"ahler Lie algebroids as a…

Differential Geometry · Mathematics 2016-11-01 Saïd Benayadi , Mohamed Boucetta

In this paper, we derive an \emph{a priori} second order estimate for solutions which are in $\Gamma_{k+1}$ cone to a class of complex Hessian equations with both sides of the equation depending on the gradient on compact Hermitian…

Analysis of PDEs · Mathematics 2021-05-25 Weisong Dong

We give a generalization of the Penrose transform on Hermitian manifolds with metrics locally conformally equivalent to Bochner-K\"ahler metrics. We also give an explicit formula for the inverse transform. This paper is a generalization of…

dg-ga · Mathematics 2008-02-03 Yoshinari Inoue

In this paper, we obtain some important inequalities of Hessian quotient operators, and global $C^2$ estimates of the Neumann problem of Hessian quotient equations. By the method of continuity, we establish the existence theorem of…

Analysis of PDEs · Mathematics 2020-03-25 Chuanqiang Chen , Dekai Zhang

This paper is a continuation of our previous work in which we studied a sl(3) Zakharov-Shabat type auxiliary linear problem with reductions of Mikhailov type and the integrable hierarchy of nonlinear evolution equations associated with it.…

Exactly Solvable and Integrable Systems · Physics 2018-08-21 T. I. Valchev , A. B. Yanovski

We consider complete nearly K\"ahler manifolds with the canonical Hermitian connection. We prove some metric properties of strict nearly K\"ahler manifolds and give a sufficient condition for the reducibility of the canonical Hermitian…

Differential Geometry · Mathematics 2007-05-23 Paul-Andi Nagy

In this paper, by using the Bochner technique on almost Hermitian manifolds, we obtain a complex Hessian comparison for almost Hermitian manifolds generalizing the Laplacian comparison for almost Hermitian manifolds by Tossati, and reprove…

Differential Geometry · Mathematics 2012-09-27 Chengjie Yu

Any constant-scalar-curvature Kaehler (cscK) metric on a complex surface may be viewed as a solution of the Einstein-Maxwell equations, and this allows one to produce solutions of these equations on any 4-manifold that arises as a compact…

Differential Geometry · Mathematics 2015-05-20 Claude LeBrun

Let M be a hypercomplex Hermitian manifold, (M,I) the same manifold considered as a complex Hermitian with a complex structure I induced by the quaternions. The standard linear-algebraic construction produces a canonical nowhere degenerate…

Algebraic Geometry · Mathematics 2007-05-23 Misha Verbitsky

This paper first investigates solvability of Hermitian-Einstein equation on a Hermitian holomorphic vector bundle on the complement of an arbitrary closed subset in a compact Hermitian manifold. The uniqueness of Hermitian-Einstein metrics…

Differential Geometry · Mathematics 2024-11-07 Di Wu , Xi Zhang

Let $(M, \Omega)$ be a holomorphically symplectic manifold equipped with a holomorphic Lagrangian fibration $\pi: M \to B$, and $\eta$ a closed $(1,1)$-form on $B$. Then $\Omega+ \pi^* \eta$ is a holomorphically symplectic form on a complex…

Algebraic Geometry · Mathematics 2025-04-22 Andrey Soldatenkov , Misha Verbitsky

A Hermitian metric on a complex manifold is called strong K\"ahler with torsion (SKT) if its fundamental 2-form $\omega$ is $\partial \bar \partial$-closed. We review some properties of strong KT metrics also in relation with symplectic…

Differential Geometry · Mathematics 2011-04-11 Nicola Enrietti , Anna Fino

We provide an iterative solution approach for the indefinite Helmholtz equation discretised using finite elements, based upon a Hermitian Skew-Hermitian Splitting (HSS) iteration applied to the shifted operator, and prove that the iteration…

Numerical Analysis · Mathematics 2026-03-20 Colin J Cotter , Kars Knook , Joshua Hope-Collins

In this paper, we generalize the definition of sub-slope, introduced by Guo-Song, to almost Hermitian manifolds and prove the existence of solutions for a general class of fully non-linear equations on compact almost Hermitian manifolds. As…

Analysis of PDEs · Mathematics 2025-06-23 Liding Huang

A hypercomplex structure on a differentiable manifold consists of three integrable almost complex structures that satisfy quaternionic relations. If, in addition, there exists a metric on the manifold which is Hermitian with respect to the…

Differential Geometry · Mathematics 2019-08-13 Artour Tomberg

In this paper, we consider the Dirichlet problem for a new class of augmented Hessian equations. Under sharp assumptions that the matrix function in the augmented Hessian is regular and there exists a smooth subsolution, we establish global…

Analysis of PDEs · Mathematics 2014-03-27 Feida Jiang , Neil S. Trudinger , Xiao-Ping Yang

We proved the existence of supersymmetric Hermitian metrics with torsion on a class of non-Kaehler manifolds.

High Energy Physics - Theory · Physics 2007-05-23 Ji-Xiang Fu , Shing-Tung Yau