Results 81 to 90 of about 332,430 (353)

Approximation and extension of Hermitian metrics on holomorphic vector bundles over Stein manifolds

open access: yesComptes Rendus. Mathématique
We show that a singular Hermitian metric on a holomorphic vector bundle over a Stein manifold which is negative in the sense of Griffiths (resp. Nakano) can be approximated by a sequence of smooth Hermitian metrics with the same curvature negativity.
Deng, Fusheng   +3 more
doaj   +1 more source

The even Clifford structure of the fourth Severi variety

open access: yesComplex Manifolds, 2015
TheHermitian symmetric spaceM = EIII appears in the classification of complete simply connected Riemannian manifolds carrying a parallel even Clifford structure [19].
Parton Maurizio, Piccinni Paolo
doaj   +1 more source

Manifolds polarized by vector bundles [PDF]

open access: yesAnnali di Matematica Pura ed Applicata, 2006
LetX be a complex projective manifold of dimension n and let e be an ample vector bundle of rank r. Let also τ = τ (X,e) = min {t ∈ ℝ : KX + t det e is nef} be the nef value of the pair (X, e). In this paper we classify the pairs (X, e) such that{ $$ \tau (X,\epsilon) \geq \frac ...
M. Andreatta, NOVELLI, CARLA
openaire   +3 more sources

The solution supramolecular structure of α2 → 8 polysialic acid suggests a structural cause for its low immunogenicity

open access: yesFEBS Letters, EarlyView.
α2 → 8 polysialic acid elicits poor immunogenicity. Small‐angle scattering shows a supramolecular structure with parallel‐chain binding, although in different forms at μm and mm calcium. The major histocompatibility complex requires molecular weights around 2000 Da to produce antibodies, and 2000 Da polysialic oligomers will bind in these structures ...
Kenneth A. Rubinson
wiley   +1 more source

Vector Bundles over non-Hausdorff Manifolds [PDF]

open access: yesarXiv, 2023
In this paper we generalise the theory of real vector bundles to a certain class of non-Hausdorff manifolds. In particular, it is shown that every vector bundle fibred over these non-Hausdorff manifolds can be constructed as a colimit of standard vector bundles.
arxiv  

Refining the NaV1.7 pharmacophore of a class of venom‐derived peptide inhibitors via a combination of in silico screening and rational engineering

open access: yesFEBS Letters, EarlyView.
Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma   +8 more
wiley   +1 more source

Higher order jet prolongations type gauge natural bundles over vector bundles

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2004
Let $rgeq 3$ and $mgeq 2$ be natural numbers and $E$ be a vector bundle with $m$-dimensional basis. We find all gauge natural bundles ``similar" to the $r$-jet prolongation bundle $J^rE$ of $E$.
Jan Kurek, Włodzimierz M. Mikulski
doaj  

The power of microRNA regulation—insights into immunity and metabolism

open access: yesFEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto   +2 more
wiley   +1 more source

On a Lie Algebraic Characterization of Vector Bundles

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We prove that a vector bundle π: E→M is characterized by the Lie algebra generated by all differential operators on E which are eigenvectors of the Lie derivative in the direction of the Euler vector field.
Pierre B.A. Lecomte   +2 more
doaj   +1 more source

A note on Demailly’s approach towards a conjecture of Griffiths

open access: yesComptes Rendus. Mathématique, 2021
We prove that a “cushioned” Hermitian–Einstein-type equation proposed by Demailly in an approach towards a conjecture of Griffiths on the existence of a Griffiths positively curved metric on a Hartshorne ample vector bundle, has an essentially unique ...
Pingali, Vamsi Pritham
doaj   +1 more source

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