arXiv research

In this paper, we develop holomorphic Jacobi structures. Holomorphic Jacobi manifolds are in one-to-one correspondence with certain homogeneous holomorphic Poisson manifolds. Furthermore, holomorphic Poisson manifolds can be looked at as special cases of holomorphic Jacobi manifolds. We show that holomorphic Jacobi str…

Develops theory of d-holomorphic connections on Klein surfaces.

Survey on holomorphic structures on complex manifolds.

The goal of this paper is to study the theory of last multipliers in the framework of complex manifolds with a fixed holomorphic volume form. The motivation of our study is based on the equivalence between a holomorphic ODE system and an associated real ODE system and we are interested how we can relate holomorphic las…

Holomorphic Lie algebroid connections on Riemann surfaces are characterized.

Classifies Kähler metrics with constant holomorphic curvature.

We introduce holomorphic Riemannian maps between almost Hermitian manifolds as a generalization of holomorphic submanifolds and holomorphic submersions, give examples and obtain a geometric characterization of harmonic holomorphic Riemannian maps from almost Hermitian manifolds to Kaehler manifolds.

New proof shows holomorphic sectional curvature fully determines curvature tensor.

Formula derived for holomorphic Poisson blow-ups.

Study on holomorphic isometries between complex domains, revealing geometric properties.

Study finds conditions for minimum of Donaldson's functional on Higgs bundles with non-holomorphic Higgs fields.

This is the second part of a series of two papers dedicated to a systematic study of holomorphic Jacobi structures. In the first part, we introduced and study the concept of a holomorphic Jacobi manifold in a very natural way as well as various tools. In the present paper, we solve the integration problem for holomorph…

Introduces quasi-holomorphic maps and their properties.

Holomorphic cylinders converge to disks joined by flow lines.

We study holomorphic Poisson manifolds and holomorphic Lie algebroids from the viewpoint of real Poisson geometry. We give a characterization of holomorphic Poisson structures in terms of the Poisson Nijenhuis structures of Magri-Morosi and describe a double complex which computes the holomorphic Poisson cohomology. A …

Holomorphic structures on Oeljeklaus-Toma manifolds are shown to be locally homogeneous.

Paper describes holomorphic polyvector fields on toric varieties.

Let $E$ be a closed set in the Riemann sphere $\widehat{\mathbb{C}}$. We consider a holomorphic motion $φ$ of $E$ over a complex manifold $M$, that is, a holomorphic family of injections on $E$ parametrized by $M$. It is known that if $M$ is the unit disk $Δ$ in the complex plane, then any holomorphic motion of $E$ ove…

Study connections on complex Riemann surfaces for Lie algebroid structures.

The study classifies holomorphic projective connections on complex threefolds.

Study on complex tori foliations and flat geometries.

Introduces new holomorphic contact structures and proves unobstructedness theorems.

Every holomorphic effective parabolic or reductive geometry on a domain over a Stein manifold extends uniquely to the envelope of holomorphy of the domain. This result completes the open problems of my earlier paper on extension of holomorphic geometric structures on complex manifolds. We use this result to classify th…

In this paper, we find a holomorphic Darboux chart around any immersed noncompact holomorphic Legendrian curve in a complex contact manifold $(X,ξ)$. By using such a chart, we show that every holomorphic Legendrian immersion $R\to X$ from an open Riemann surface can be approximated on relatively compact subsets by holo…

We introduce a natural generalisation of holomorphic curves to morphisms of supermanifolds, referred to as holomorphic supercurves. More precisely, supercurves are morphisms from a Riemann surface, endowed with the structure of a supermanifold which is induced by a holomorphic line bundle, to an ordinary almost complex…

Study anti-invariant submersions from holomorphic statistical manifolds.

Classifies holomorphic parabolic geometries on complex manifolds.

Construct Kähler metrics with negative holomorphic bisectional curvature on compact relative Kähler fibrations.

We characterize all LVMB manifolds X such that the holomorphic tangent bundle TX is spanned at the generic point by a family of global holomorphic vector fields, each of them having non-empty zero locus. We deduce that holomorphic connections on semi-stable holomorphic vector bundles over LVMB manifolds with this previ…

Extends residue theory to flags of holomorphic distributions.

Study optimal holomorphic extensions for jets along submanifolds as tensor powers increase.

The classical Hadamard three circle theorem is generalized to complete Kähler manifolds. More precisely, we show that the nonnegativity of the holomorphic sectional curvature is a necessary and sufficient condition for the three circle theorem. As corollaries, two sharp monotonicity formulae for holomorphic functions a…

In this paper, we study deformations of holomorphic Poisson maps which extend Horikawa's series of papers on deformations of holomorphic maps in the context of holomorphic Poisson deformations. In appendices, we present deformations of Poisson morphisms in the language of functors of Artin rings which is the algebraic …

The Fubini-Study metric minimizes a volume-normalized holomorphic systole in $\mathbb{C}P^n$.

We introduce the concept of a branched holomorphic Cartan geometry. It generalizes to higher dimension the definition of branched (flat) complex projective structure on a Riemann surface introduced by Mandelbaum. This new framework is much more flexible than that of the usual holomorphic Cartan geometries. We show that…

Study BV operators on holomorphic polyvector fields on toric varieties.

The study bounds dimensions and proves existence of holomorphic sections on Kähler Ricci shrinkers.

Holomorphic Koszul-Brylinski homology studied via Dolbeault cohomology.

The paper proves that Kähler manifolds with positive holomorphic sectional curvature have a limited diameter.

The paper proves strong holomorphic Morse inequalities on complex manifolds with optimal estimates.

A holomorphic Lagrangian fibration on a holomorphically symplectic manifold is a holomorphic map with Lagrangian fibers. It is known that a given compact manifold admits only finitely many holomorphic symplectic structures, up to deformation. We prove that a given compact manifold with $b_2 \geq 7$ admits only finitely…

Holomorphic connections on Calabi-Yau manifolds are flat.

Study on deformations of holomorphic Cartan geometries, focusing on flat cases.

The paper proves compactness for holomorphic curves with boundary on nearby Lagrangians.

Analytic linearization and holomorphic extensions for proper groupoids.

This paper extends geometric structure theory to infinite type structures.

The paper explores constant holomorphic d-scalar curvature on specific manifolds.

We describe a family of calibrations arising naturally on a hyperkähler manifold $M$. These calibrations calibrate the holomorphic Lagrangian, holomorphic isotropic and holomorphic coisotropic subvarieties. When $M$ is an HKT (hyperkaehler with torsion) manifold with holonomy $SL(n, {\Bbb H})$, we construct another fam…