Results 101 to 110 of about 82,654 (305)
On the Helly Number for Hyperplane Transversals to Unit Balls [PDF]
Discrete & Computational Geometry, 2000 The paper concerns the smallest number \(k\) such that for every family of at least \(k\) pairwise disjoint unit balls in the Euclidean \(d\)-space \(\mathbb{R}^d\) the following implication is true: if every \(k\) from the balls are met by a hyperplane, then there is a hyperplane which meets all the balls from the family.
Boris Aronov +3 more
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Bacterial‐Electrochemical Platform Utilizing a MXene‐Peptide Hydrogel
Advanced Functional Materials, EarlyView.A peptide‐based fibrillar hydrogel incorporating MXene facilitates efficient electron delivery to intracellular recombinant [FeFe]‐hydrogenase enzyme in E. coli, enabling sustained bioelectrochemical H2 production without engineered exoelectrogenicity pathways.
Oren Ben‐Zvi +6 more
wiley +1 more source
Spherical contractions and interpolation problems on the unit ball
, 2001 In this note fractional representations of multipliers on vector-valued functional Hilbert spaces are used to give a proof of Arveson\u27s version of von Neumann\u27s inequality for n-contractions on the unit ball.
Putinar, Mihai, Eschmeier, Jörg
core +1 more source
Plasticity of the unit ball of a Banach space [PDF]
, 2021 Selles bakalaureusetöös vaadeldakse väljakutsuvat lahtist küsimust Banachi ruumi ühikkera plastilisusest. Töös antakse ülevaade probleemist ja laiendatakse osaliste positiivsete tulemuste nimekirja, tõestades ühikkera plastilisuse ruumis c.
Leo, Nikita
core
On the Growth of the Cauchy-Szego Transform in the Unit Ball [PDF]
Zurnal matematiceskoj fiziki, analiza, geometrii, 2015 The growth of holomorphic and harmonic functions on the unit ball \(B_n\) in \({\mathbb C}^n\) represented by the Cauchy-Stieltjes integral or the Poisson-Stieltjes integral is described. Theorem 1. Let \(\mu\) be a complex-valued Borel measure on \(S_n = \partial B_n\), \(p\in (0, n]\) and \[ \omega(\delta, \mu) = \sup_{z_0\in S_n} |\mu|\big(\big\{\xi\
Chyzhykov, I., Voitovych, M.
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Advanced Materials, EarlyView.Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim +17 more
wiley +1 more source
Weighted Composition Operators from F(p,q,s) Spaces to Hμ∞ Spaces
Abstract and Applied Analysis, 2009 Let H(B) denote the space of all holomorphic functions on the unit ball B. Let u∈H(B) and φ be a holomorphic self-map of B. In this paper, we investigate the boundedness and compactness of the weighted composition operator uCφ from the general function ...
Xiangling Zhu
doaj +1 more source
Concentration of the distance between points in the unit ball
, 1998 We prove that in every finite dimensional normed space, for “most” pairs (x, y) of points in the unit ball, ║x − y║ is more than √2(1 − ε). As a consequence, we obtain a result proved by Bourgain, using QS-decomposition, that guarantees an exponentially ...
Villa, R, Ball, KM
core
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
EFFECT OF GRINDING MEDIA ON THE MILLING EFFICIENCY OF A BALL MILL
Rudarsko-geološko-naftni Zbornik, 2022 The size of grinding media is the primary factor that affects the overall milling efficiency of a ball mill (e.g. power consumption and particle size breakage).
Gamal S. Abdelhaffez +2 more
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