Results 71 to 80 of about 197,284 (286)

Weighted pseudo almost periodic solutions for functional differential equations

Electronic Journal of Differential Equations, 2007
By means of the exponential dichotomy method and the properties of the weighted pseudo almost periodic functions, sufficient conditions are obtained for the existence of weighted pseudo almost periodic solutions of functional differential equations ...
Yuantong Xu, Liuwei Zhang
doaj  

An efficient spectral algorithm for non-linear astrophysical Lane–Emden problem using pseudo-Chebyshev wavelets with error analysis

Franklin Open
Mother wavelets play a crucial role in wavelet analysis, leading to the development of several well-known families such as Haar, Morlet, Legendre, and Chebyshev wavelets.
Susheel Kumar, Satish Kumar, Sudhir Kumar Mishra, Shyam Lal   +3 more
doaj   +1 more source

Dynamics with Infinitely Many Derivatives: The Initial Value Problem

, 2008
Differential equations of infinite order are an increasingly important class of equations in theoretical physics. Such equations are ubiquitous in string field theory and have recently attracted considerable interest also from cosmologists.
A. Kilbas, A. Ludu, A.A. Gerasimov, A.D. Polyanin, A.S. Koshelev, B. Dragovich, D.V. Prokhorenko, E. Coletti, G. Calcagni, G. Calcagni, H.T. Davis, H.T. Davis, I. Ellwood, I.Y. Aref'eva, I.Y. Aref'eva, I.Y. Aref'eva, I.Y. Aref'eva, I.Y. Aref'eva, J.A. Minahan, L. Carleson, M. Kiermaier, M. Ostrogradski, M. Schnabl, M. Taylor, M.E. Soussa, N. Barnaby, N. Barnaby, N. Barnaby, N. Barnaby, N. Hayashi, N. Jokela, N. Moeller, N. Moeller, Neil Barnaby, Niky Kamran, R. Bryant, R.D. Carmichael, R.L.P.G. do Amaral, R.P. Woodard, S. Coleman, T. Biswas, T. Biswas, T. Erler, T. Lalesco, V.S. Vladimirov, W. Siegel, W. Taylor, W.T. Thomson, Y. Okawa, Y. Volovich, Y. Volovich   +50 more
core   +2 more sources

A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials

Advanced Engineering Materials, EarlyView.
This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline, Matthew Santer, Robert Hewson   +2 more
wiley   +1 more source

Pseudo S-asymptotically Bloch type periodicity with applications to partial stochastic neutral evolution equations [PDF]

Arab Journal of Mathematical Sciences
PurposeThis paper introduces the concept of (µ, ν)-pseudo S-asymptotically Bloch type (ω, k)- periodic functions, aiming to extend the framework of periodicity in stochastic analysis and to investigate their role in neutral partial stochastic ...
Marwa Missaoui
doaj   +1 more source

On discrete pseudo-differential operators and equations

Filomat, 2018
We introduce discrete pseudo-differential operators in appropriate discrete Sobolev-Slobodetskii spaces. Using discrete Fourier transform and factorization concept we study invertibility of such operators in some discrete spaces. Some examples for discrete Calderon-Zygmund operators and difference operators are considered.
openaire   +4 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

New Conditions for the Exponential Stability of Nonlinear Differential Equations

Abstract and Applied Analysis, 2017
We develop a method for proving local exponential stability of nonlinear nonautonomous differential equations as well as pseudo-linear differential systems.
Rigoberto Medina
doaj   +1 more source

Analyticity for a class of non-linear evolutionary pseudo-differential equations

European Journal of Applied Mathematics, 2014
We study the analyticity properties of solutions for a class of non-linear evolutionary pseudo-differential equations possessing global attractors. In order to do this we utilise an analyticity criterion for spatially periodic functions, which involves the rate of growth of a suitable norm of the nth derivative of the solution, with respect to the ...
Ioakim, Xenakis, Smyrlis, Yiorgos-Sokratis, Ioakim, Xenakis, Smyrlis, Yiorgos-Sokratis   +3 more
openaire   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source