Results 11 to 20 of about 63,478 (260)

Affine Hermitian-Einstein Metrics [PDF]

open access: bronzeAsian Journal of Mathematics, 2009
We develop a theory of stable bundles and affine Hermitian-Einstein metrics for flat vector bundles over a special affine manifold (a manifold admitting an atlas whose gluing maps are all locally constant volume-preserving affine maps). Our paper presents a parallel to Donaldson-Uhlenbeck-Yau's proof of the existence of Hermitian-Einstein metrics on K
John Loftin
openalex   +6 more sources

Pseudo-Hermitian Quantum Mechanics with Unbounded Metric Operators [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
We extend the formulation of pseudo-Hermitian quantum mechanics to eta-pseudo-Hermitian Hamiltonian operators H with an unbounded metric operator eta. In particular, we give the details of the construction of the physical Hilbert space, observables, and ...
Blank J   +3 more
core   +11 more sources

Plurisigned hermitian metrics

open access: bronzeTransactions of the American Mathematical Society, 2023
Let ( X , ω ) (X,\omega ) be a compact hermitian manifold of dimension n n . We study the asymptotic behavior of Monge-Ampère volumes ∫ X ( ω + d d c φ ) n
Daniele Angella   +2 more
openalex   +4 more sources

Special Hermitian metrics on Oeljeklaus–Toma manifolds [PDF]

open access: greenBulletin of the London Mathematical Society, 2022
Oeljeklaus-Toma (OT) manifolds are higher dimensional analogues of Inoue-Bombieri surfaces and their construction is associated to a finite extension $K$ of $Q$ and a subgroup of units $U$. We characterize the existence of pluriclosed metrics (also known as strongly K\" ahler with torsion (SKT) metrics) on any OT manifold $X(K, U)$ purely in terms of ...
Alexandra Otiman
openalex   +3 more sources

Deformation of Hermitian metrics

open access: yesMathematical Research Letters, 2022
In this work, we study the deformation of Hermitian metrics with Chern connection. By adapting the conformal perturbation method of Aubin and Ehrlich to Hermitian setting, we prove that Hermitian metrics with quasi-positive (resp. quasi-negative) second Chern-Ricci curvature can be deformed to one with positive (resp. negative) curvature.
Lee, Man-Chun, Li, Ka-Fai
openaire   +2 more sources

Singular hermitian metrics on holomorphic vector bundles

open access: greenArkiv för Matematik, 2012
We introduce and study a notion of singular hermitian metrics on holomorphic vector bundles, following Berndtsson and P{ }un. We define what it means for such a metric to be curved in the sense of Griffiths and investigate the assumptions needed in order to locally define the cuvature $ ^h$ as a matrix of currents.
Hossein Raufi
openalex   +6 more sources

On quasi-Sasakian structure on a totally umbilical hypersurface of a six-dimensional Hermitian planar submanifold of Cayley algebra

open access: yesДифференциальная геометрия многообразий фигур, 2022
Six-dimensional planar submanifolds of Cayley algebra equipped with almost Hermitian structures induced by Brown — Gray three-fold vector cross products in are considered.
G.A. Banaru
doaj   +1 more source

Remarks on Chern–Einstein Hermitian metrics [PDF]

open access: yesMathematische Zeitschrift, 2019
minor changes, to appear in Math ...
daniele angella   +2 more
openaire   +5 more sources

A note on η-quasi-umbilical hypersurfaces in almost Hermitian manifolds

open access: yesДифференциальная геометрия многообразий фигур, 2023
In the present note, we consider the introduced by Lidia Vasil’evna Stepanova notion of an -quasi-umbilical hypersurface in an almost Her­mitian manifold.
M. B. Banaru
doaj   +1 more source

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