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In this paper, we solve affirmatively B.-Y. Chen's conjecture for hypersurfaces in the Euclidean space, under a generic condition. More precisely, every biharmonic hypersurface of the Euclidean space must be minimal if their principal…

Differential Geometry · Mathematics 2014-08-26 N. Koiso , H. Urakawa

We consider a smooth CR mapping $f$ from a real-analytic generic submanifold $M$ in $\bC^N$ into $\bC^N$. For $M$ of finite type and essentially finite at a point $p\in M$, and $f$ formally finite at $p$, we give a necessary and sufficient…

Complex Variables · Mathematics 2007-05-23 Peter Ebenfelt , Linda P. Rothschild

A transversely holomorphic foliation on a compact complex manifold, exhibits a compact stable leaf if and only if the set of compact leaves is not a meager subset of the manifold.

Dynamical Systems · Mathematics 2014-09-16 Bruno Scardua

In this paper, we study biharmonic hypersurfaces in Einstein manifolds. Then, we determine all the biharmonic hypersurfaces in irreducible symmetric spaces of compact type which are regular orbits of commutative Hermann actions of…

Differential Geometry · Mathematics 2015-07-08 Shinji Ohno , Takashi Sakai , Hajime Urakawa

We study the set of curvature functions which a given compact manifold with boundary can possess. First, we prove that the sign demanded by the Gauss-Bonnet Theorem is a necessary and sufficient condition for a given function to be the…

Differential Geometry · Mathematics 2024-09-04 Tiarlos Cruz , Almir Silva Santos , Feliciano Vitório

In this paper, we combine tools from pluripotential theory and commutative algebra to study singularity invariants of plurisubharmonic functions. We establish several relationships between the singularity invariants of plurisubharmonic…

Complex Variables · Mathematics 2025-05-28 Pham Hoang Hiep

We consider a subanalytic subset A of a complex analytic manifold M (when M is viewed as a real manifold) and formulate conditions under which A is a complex analytic subset of M.

Complex Variables · Mathematics 2007-05-23 Y. Peterzil , S. Starchenko

A very short proof of the following smooth homogeneity theorem of D. Repovs, E. V. Scepin and the author is presented. Let N be a locally compact subset of a smooth manifold M. Assume that for each two points x,y in N there exist their…

Geometric Topology · Mathematics 2007-06-13 A. Skopenkov

Here we give an explicit construction of a globally defined strictly plurisubharmonic function on projectivized strata of strictly meromorphic differentials with prescribed orders of zeros and poles. In particular, this yields a…

Algebraic Geometry · Mathematics 2026-02-18 Dawei Chen , Guillaume Tahar

We prove that a totally real manifold (of maximal dimension) is a boundary uniqueness set for a psh function on an almost complex manifold.

Complex Variables · Mathematics 2018-07-10 Alexandre Sukhov

In this note we show that on any compact subdomain of a K\"ahler manifold that admits sufficiently many global holomorphic functions, the products of harmonic functions form a complete set. This gives a positive answer to the linearized…

Analysis of PDEs · Mathematics 2018-05-03 Colin Guillarmou , Mikko Salo , Leo Tzou

This paper presents a proof of the existence of standard symplectic coordinates near a set of smooth, orthogonally intersecting symplectic submanifolds. It is a generalization of the standard symplectic neighborhood theorem. Moreover, in…

Symplectic Geometry · Mathematics 2018-10-08 Roberta Guadagni

The Jensen envelope $J\phi$ of an upper semicontinuous function $\phi$ on a complex manifold X is defined at $x\in X$ as the infimum of $\mu(\phi)$ over all Jensen measures $\mu$ centred at x. The Poisson envelope $P\phi$ is defined by…

Complex Variables · Mathematics 2007-05-23 Finnur Larusson , Ragnar Sigurdsson

We prove Richberg type theorem for $m$-subharmonic function. The main tool is the complex Hessian equation for which we obtain the existence of the unique smooth solution in strictly pseudoconvex domains.

Complex Variables · Mathematics 2014-04-24 Szymon Pliś

We construct a strictly pseudoconvex domain with smooth boundary whose squeezing function is not plurisubharmonic.

Complex Variables · Mathematics 2016-04-28 John Erik Fornæss , Nikolay Shcherbina

We give a sufficient condition for a meromorphic correspondence to be a holomorphic correspondence in a neighbourhood of a smooth real hypersurface

Complex Variables · Mathematics 2013-11-14 Rasul Shafikov , Kaushal Verma

In this note we begin a systematic study of compact conformal manifolds of SCFTs in four dimensions (our notion of compactness is with respect to the topology induced by the Zamolodchikov metric). Supersymmetry guarantees that such…

High Energy Physics - Theory · Physics 2015-06-23 Matthew Buican , Takahiro Nishinaka

We study f-biharmonic and bi-f-harmonic submanifolds in both generalized complex and Sasakian space forms. We prove necessary and sufficient condition for f-biharmonicity and bi-f-harmonicity in the general case and many particular cases.…

Differential Geometry · Mathematics 2016-09-28 Julien Roth , Abhitosh Upadhyay

The main aim of this work is to construct several new families of proper biharmonic functions defined on open subsets of the classical compact simple Lie groups $\SU n$, $\SO n$ and $\Sp n$. We work in a geometric setting which connects our…

Differential Geometry · Mathematics 2016-08-31 Sigmundur Gudmundsson , Stefano Montaldo , Andrea Ratto

Let $M$ be a complex manifold and $PSH^{cb}(M)$ be the space of bounded continuous plurisubharmonic functions on $M$. In this paper we study when functions from $PSH^{cb}(M)$ separate points. Our main results show that this property is…

Complex Variables · Mathematics 2018-05-15 Evgeny A. Poletsky , Nikolay Shcherbina