Results 61 to 70 of about 1,900,675 (267)

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

A Cauchy-type generalization of Flett's theorem

open access: yesDemonstratio Mathematica, 2021
We prove a Cauchy-type generalization of Flett’s theorem and note its geometric interpretations. Several other mean value theorems extending further the result, which involve both real and complex functions, are also proved.
Markov Lubomir
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

On a mean value theorem connected with Hermite-Hadamard's inequality

open access: yesJournal of Numerical Analysis and Approximation Theory, 2004
In this paper we prove a mean-value theorem for integral calculus, then we demonstrate properties of the mean point. In the end we give an extension of Hermite-Hadamard's inequality.
Ovidiu T. Pop
doaj   +2 more sources

A mean value formula and a Liouville theorem for the complex Monge-Amp\`ere equation [PDF]

open access: yes, 2017
In this paper, we prove a mean value formula for bounded subharmonic Hermitian matrix valued function on a complete Riemannian manifold with nonnegative Ricci curvature.
Chao Li, Jiayu Li, Xi Zhang
semanticscholar   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

The Estimation of Renewal Functions Using the Mean Value Theorem for Integrals (MeVTI) Method

open access: yes, 2016
In the analysis of warranty, renewal functions are important in acquiring the expected number of failures of a nonrepairable component in a time interval. It is very difficult and complicated -if at all possible- to obtain a renewal function analytically.
L. R. Sasongko, Tundjung Mahatma
semanticscholar   +1 more source

A Mean Value Theorem for the Diophantine Equation $axy-x-y=n$

open access: yes, 2011
In this paper, we prove an asymptotic formula for the average number of solutions to the Diophantine equation $axy-x-y=n$ in which $a$ is fixed and and $n$ varies.Comment: 11 pages, to appear in Acta Math. Hungar. A couple of typos are corrected in the
Huang, Jing-Jing
core   +1 more source

Burgess bounds for short mixed character sums

open access: yes, 2014
This paper proves nontrivial bounds for short mixed character sums by introducing estimates for Vinogradov's mean value theorem into a version of the Burgess method.Comment: 20 ...
Heath-Brown, D. R., Pierce, L. B.
core   +1 more source

On a functional equation related to a generalization of Flett's mean value theorem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
In this paper, we characterize all the functions that attain their Flett mean value at a particular point between the endpoints of the interval under consideration. These functions turn out to be cubic polynomials and thus, we also characterize these.
T. Riedel, Maciej Sablik
doaj   +1 more source

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