Almost Complex Manifolds and Hirzebruch Invariant for Isolated Singularities in Complex Spaces.
Almost contact metric 3-submersions.
Almost hermitian geometry on six dimensional nilmanifolds
Almost Hermitian surfaces with vanishing Tricerri-Vanhecke Bochner curvature tensor
We study the curvature properties of almost Hermitian surfaces with vanishing Bochner curvature tensor as defined by Tricerri and Vanhecke. Local structure theorems for such almost Hermitian surfaces are provided, and several examples related to these theorems are given.
Almost hyper-Hermitian structures in bundle spaces over manifolds with almost contact -structure
We consider almost hyper-Hermitian structures on principal fibre bundles with one-dimensional fiber over manifolds with almost contact 3-structure and study relations between the respective structures on the total space and the base. This construction suggests the definition of a new class of almost contact 3-structure, which we called trans-Sasakian, closely connected with locally conformal quaternionic Kähler manifolds. Finally we give a family of examples of hypercomplex manifolds which are not...
An analogy of Tian-Todorov theorem on deformations of CR-structures
An anti-Kählerian Einstein structure on the tangent bundle of a space form
In [11] we have considered a family of almost anti-Hermitian structures (G,J) on the tangent bundle TM of a Riemannian manifold (M,g), where the almost complex structure J is a natural lift of g to TM interchanging the vertical and horizontal distributions VTM and HTM and the metric G is a natural lift of g of Sasaki type, with the property of being anti-Hermitian with respect to J. Next, we have studied the conditions under which (TM,G,J) belongs to one of the eight classes of anti-Hermitian structures...
An application of twistor theory to the non-hyperbolicity of certain compact symplectic Kähler manifolds.
An embedding theorem of complete Kähler manifolds of positive Ricci curvature onto quasi-projective varieties.
An embedding theorem of complete Kähler manifolds of positive bisectional curvature onto affine algebraic varieties
An example of a 6-dimensional flat almost Hermitian manifold
An example of an asymptotically Chow unstable manifold with constant scalar curvature
Donaldson proved that if a polarized manifold has constant scalar curvature Kähler metrics in and its automorphism group is discrete, is asymptotically Chow stable. In this paper, we shall show an example which implies that the above result does not hold in the case where is not discrete.
An extension of a result of H. Hopf to Kähler submanifolds of
An Extension of Calabi's Rigidity theorem to complex submanifolds of indefinite complex space forms.
An inequality for totally real surfaces in complex space forms
An intrinsic characterization of Kähler manifolds.
An Obstruction to the Existence of Einstein Kähler Metrics.
Analytic Cycles and Vector Bundles on Non-Compact Algebraic Varieties.
Anti-self-dual Hermitian metrics on blown-up Hopf surfaces.
Any Hermitian Metric of Constant Non-Positive (Hermitian) Holomorphic Sectional Curvature on a Compact Complex Surface is Kähler.