Results 101 to 110 of about 5,234,186 (356)

New versions of the Nyman-Beurling criterion for the Riemann hypothesis

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
Let ρ(x)=x−[x], χ=χ(0,1), λ(x)=χ(x)logx, and M(x)=ΣK≤x μ(k), where μ is the Möbius function.
Luis Báez-Duarte
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes

open access: yesAdvanced Functional Materials, EarlyView.
The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons   +8 more
wiley   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

An Inference Framework of Markov Logic Network for Link Prediction in Heterogeneous Networks

open access: yesApplied Sciences
The presence of multiplex edges and sparse links often hampers the efficacy of link prediction (LP) tasks. By harnessing the expressive power of Markov logic network (MLN) formulations, multiplex edges can be unified to enhance LP effectiveness. However,
Zhongbin Li   +3 more
doaj   +1 more source

On the weak uniform rotundity of Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We prove that if Xi,i=1,2,…, are Banach spaces that are weak* uniformly rotund, then their lp product space (p>1) is weak* uniformly rotund, and for any weak or weak* uniformly rotund Banach space, its quotient space is also weak or weak* uniformly ...
Wen D. Chang, Ping Chang
doaj   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

The Bedrosian Identity for Lp Function and the Hardy Space on Tube

open access: yesAIMS Mathematics, 2016
In this paper, we are devoted to establishing several necessary and su cient conditions for f∈Lp(Rn); g∈Lq(Rn) with (1/p) +(1/q)≤1 to satisfy the Bedrosian identity H(fg) =fHg, where H denotes the n-dimensional Hilbert transform.
Zhihong Wen, Guantie Deng
doaj   +1 more source

Projective tensor products and Apq spaces

open access: yes, 2014
The aim of this paper is to extend the notion of Apq space from its historical context in the work of Herz and to recognise such spaces as preduals of spaces of intertwining operators of induced representations as suggested by the work of Rieffel.
Dharmadasa, H. Kumudini, Moran, William
core  

Pointwise Best Approximation in the Space of Strongly Measurable Functions with Applications to Best Approximation in Lp(µ,X)

open access: yes, 1994
The object of this paper is to prove the following theorem: Let Y be a closed subspace of the Banach space X, (S,?,?) a ?-finite measure space, L(S,Y) (respectively, L(S, X)) the space of all strongly measurable functions from S to Y (respectively, X ...
Y. Zhaoyong, G. Tiexin
semanticscholar   +1 more source

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