Results 71 to 80 of about 244,145 (258)

Fractional q-symmetric calculus on a time scale

Advances in Difference Equations, 2017
In this paper, the definitions of q-symmetric exponential function and q-symmetric gamma function are presented. By a q-symmetric exponential function, we shall illustrate the Laplace transform method and define and solve several families of linear ...
Mingzhe Sun, Chengmin Hou
doaj   +1 more source

Single‐Crystalline Lateral p‐SnS/n‐SnSe van der Waals Heterostructures by Vapor Transport Growth with In Situ Bi Doping

Advanced Functional Materials, EarlyView.
In‐situ doping during growth of SnSe and subsequent attachment of SnS produces high‐quality lateral pn‐heterojunctions between van der Waals semiconductors. Electron beam induced current measurements demonstrate electrically active pn‐junctions, paving the way for devices that harness charge separation at lateral interfaces in layered heterostructures.
Peter Sutter, Valerio Piazza, Pramod Ghimire, Anna Fontcuberta i Morral, Eli Sutter   +4 more
wiley   +1 more source

On uniform exponential trisplitting for cocycles of linear operators in Banach spaces

Annals of the West University of Timisoara: Mathematics and Computer Science, 2018
The aim of this paper is to study the concept of uniform exponential trisplitting for skew-product semiflow in Banach spaces. This concept is a generalisation of the well-known concept of uniform exponential trichotomy. We obtain necessary and sufficient
Biriş Larisa Elena, Mihiţ Claudia Luminiţa, Ceauşu Traian, Popa Ioan-Lucian   +3 more
doaj   +1 more source

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

Advanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang, Zisheng Du, Hongyuan Yang, Debabrata Bagchi, Ruotao Yang, Prashanth W. Menezes, Sugang Meng   +6 more
wiley   +1 more source

Uniform Exponential Stability of Discrete Evolution Families on Space of p-Periodic Sequences

Abstract and Applied Analysis, 2014
We prove that the discrete system ζn+1=Anζn is uniformly exponentially stable if and only if the unique solution of the Cauchy problem ζn+1=Anζn+eiθn+1zn+1,  n∈Z+, ζ0=0, is bounded for any real number θ and any p-periodic sequence z(n) with z(0)=0. Here,
Yongfang Wang, Akbar Zada, Nisar Ahmad, Dhaou Lassoued, Tongxing Li   +4 more
doaj   +1 more source

On Cauchy-Stieltjes Kernel Families [PDF]

, 2012
We explore properties of Cauchy-Stieltjes families that have no counterpart in exponential families. We relate the variance function of the iterated Cauchy-Stieltjes family to the pseudo-variance function of the initial Cauchy-Stieltjes family.
Bryc, Wlodek, Fakhfakh, Raouf, Hassairi, Abdelhamid   +2 more
core  

Exponential families, Kahler geometry and quantum mechanics

, 2012
Exponential families are a particular class of statistical manifolds which are particularly important in statistical inference, and which appear very frequently in statistics.
Amari, Ashtekar, Brody, Brody, Brody, Chernoff, Cirelli, Cirelli, Combescure, Dombrowski, Gibbons, Glauber, Heslot, Heslot, Hughston, Jost, Kibble, Kostant, Lang, Marchildon, Mathieu Molitor, Michael, Minic, Minic, Molitor, Murray, Nomizu, Nomizu, Perelomov, Radcliffe, Rawnsley, Schrödinger, Souriau, Twareque Ali   +33 more
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Electric Field‐Dependent Conductivity as Probe for Charge Carrier Delocalization and Morphology in Organic Semiconductors

Advanced Functional Materials, EarlyView.
Applying a high electric field to a doped organic semiconductor heats up the charge carrier distribution beyond the lattice temperature, enhancing conductivity. It is shown that the associated effective temperature can be used to extract the effective localization length, which is a characteristic length scale of charge transport and provides ...
Morteza Shokrani, Felix Maximilian Graf, Anton Kompatscher, Dennis Derewjanko, Martijn Kemerink   +4 more
wiley   +1 more source

A spectral mapping theorem for evolution semigroups on asymptotically almost periodic functions defined on the half line

Electronic Journal of Differential Equations, 2002
We prove that the evolution semigroup on $AAP_0(mathbb{R}_+, X)$ is strongly continuous. Then we prove some properties of the generator of this evolution semigroup and show some applications in the theory of inequalities.
Constantin Buse
doaj  

A Generalization for Theorems of Datko and Barbashin Type

Journal of Function Spaces, 2015
The goal of the paper is to give some characterizations for the uniform exponential stability of evolution families by unifying the discrete-time versions of the Barbashin-type theorem and the Datko-type theorem.
Pham Viet Hai
doaj   +1 more source