We obtain on a Kähler B-manifold (i.e., manifold with Norden metric) some corresponding results from the Kählerian and para-Kählerian context concerning Bochner curvature. prove that such is of constant totally real sectional curvatures if only it holomorphic Einstein, flat manifold. Moreover, we provide necessary sufficient conditions for gradient Ricci soliton or ?-Einstein metric to be flat....

We study complete noncompact long time solutions (M, g(t)) to the Kähler-Ricci flow with uniformly bounded nonnegative holomorphic bisectional curvature. We will show that when the Ricci curvature is positive and uniformly pinched, i.e. Ri̄ ≥ cRgi̄ at (p, t) for all t for some c > 0, then there always exists a local gradient Kähler-Ricci soliton limit around p after possibly rescaling g(t) alon...

In this paper, we first establish several theorems about the estimation of distance function on real and strongly convex complex Finsler manifolds then obtain a Schwarz lemma from weakly K\"ahler-Finsler manifold into pseudoconvex manifold. As applications, prove that holomorphic mapping is necessary constant under an extra condition. particular, Minkowski space such its sectional curvature bou...

A class of nearly Sasakian manifolds is considered in this paper. We discuss the geometric effects some symmetries on such and show, under a certain condition, that Ricci semi-symmetric subclass Einstein manifolds. prove Codazzi-type space form either manifold with constant ϕ-holomorphic sectional curvature H=1 or 5-dimensional proper H>1. also spectrum operator H2 generated by set simple ei...

An isometric immersion f : Mn ? ?Mm from an n-dimensional Riemannian manifold into almost Hermitian of complex dimension m is called pointwise slant if its Wirtinger angles define a function defined on Mn. In this paper we establish the Existence and Uniqueness Theorems for immersions manifolds space form ?Mn(c) constant holomorphic sectional curvature c, which extend proved by B.-Y. Chen L. Vr...

Let (M, g) be a complete non compact Kähler manifold with non-negative and bounded holomorphic bisectional curvature. Extending our techniques developed in [8], we prove that the universal cover M̃ of M is biholomorphic to Cn provided either that (M, g) has average quadratic curvature decay, or M supports an eternal solution to the Kähler-Ricci flow with non-negative and uniformly bounded holomo...

We investigate the property of the Wu invariant metric on a certain class of psuedoconvex domains. We show that the Wu invariant Hermitian metric, which in general behaves as nicely as the Kobayashi metric under holomorphic mappings, enjoys the complex hyperbolic curvature property in such cases. Namely, the Wu invariant metric is Kähler and has constant negative holomorphic curvature in a neig...