Results 41 to 50 of about 195,496 (282)

Existence and uniqueness theorem for a Hammerstein nonlinear integral equation [PDF]

Opuscula Mathematica, 2011
The existence of a solution, as well as some properties of the obtained solution for a Hammerstein type nonlinear integral equation have been investigated. For a certain class of functions the uniqueness theorem has also been proved.
A. Kh. Khachatryan, Kh. A. Khachatryan
doaj   +1 more source

Existence and uniqueness theorems for Pexider additive equations

Multidiszciplináris tudományok, 2022
The aim of this presentation is to show a generalization of the well-known Rimán's Extension Theorem and the main steps of the way leading to it.
Tamás Glavosits, Zsolt Karácsony
openaire   +2 more sources

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

Advanced 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, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Almost-periodic solution for BAM neural networks [PDF]

Surveys in Mathematics and its Applications, 2009
In this paper, we study the existence and uniqueness solution and investigate the conditions that make it almost-periodic solution for BAM neural networks with retarded delays.
Hamid A. Jalab, Rabha W. Ibrahim
doaj  

Towards new background independent representations for Loop Quantum Gravity

, 2007
Recently, uniqueness theorems were constructed for the representation used in Loop Quantum Gravity. We explore the existence of alternate representations by weakening the assumptions of the so called LOST uniqueness theorem. The weakened assumptions seem
Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Fleischhack C, Fleischhack C, Kaminski W, Kaminski W, Koslowski A, Krantz S G, Madhavan Varadarajan, Okolow A, Okolow A, Sahlman H Thiemann T, Sahlmann H, Sahlmann H, Sahlmann H, Sahlmann H, Wald R W   +18 more
core   +2 more sources

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

Advanced 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, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

EXISTENCE AND UNIQUENESS THEOREMS FOR NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS

Demonstratio Mathematica, 2000
Summary: The authors study the following Cauchy-type problem for the nonlinear differential equation of fractional order \(\alpha\in \mathbb{C}\), \(\text{Re}(\alpha)> 0\), \[ (D^\alpha_{a+}y)(x)= f[x, y(x)],\quad n-1< \text{Re}(\alpha)\leq n,\quad n= -[-\text{Re}(\alpha)], \] \[ (D^{\alpha- k}_{a+} y)(a+)= b_k,\quad b_k\in \mathbb{C},\quad k= 1,2 ...
Kilbas, A. A., Bonilla, B., Trujillo, J. J.   +2 more
openaire   +2 more sources

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

Advanced 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, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Existence and uniqueness of solutions for a class of infinite-horizon systems derived from optimal control

International Journal of Mathematics and Mathematical Sciences, 2005
This paper deals with the existence and uniqueness of solutions for a class of infinite-horizon systems derived from optimal control. An existence and uniqueness theorem is proved for such Hamiltonian systems under some natural assumptions.
Lianwen Wang
doaj   +1 more source

Stochastic Differential Equations Driven by Fractional Brownian Motion and Standard Brownian Motion

, 2008
We prove an existence and uniqueness theorem for solutions of multidimensional, time dependent, stochastic differential equations driven simultaneously by a multidimensional fractional Brownian motion with Hurst parameter H>1/2 and a multidimensional ...
David Nualart, Hamadouche D., João Guerra, Kolmogorov A.N., Lyons T., Lyons T., Nualart D., Samko S.G., Skorokhod A.V., Yamada T.   +9 more
core   +2 more sources