Results 111 to 120 of about 12,854 (309)

Exact and Fast Numerical Algorithms for the Stochastic Wave Equation [PDF]

open access: yes, 2003
On the basis of integral representations we propose fast numerical methods to solve the Cauchy problem for the stochastic wave equation without boundaries and with the Dirichlet boundary conditions.
Martin, A.   +9 more
core   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

open access: yesAdvanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng   +11 more
wiley   +1 more source

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

open access: yesAdvanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang   +20 more
wiley   +1 more source

On the Stochastic Integral Equations with Non-lipschitz Coefficients

open access: yes, 2012
[[abstract]]Consider the stochastic integral equation (S.I.E.) where f satisfies some non-Lipschitz condition and H,Z are F t -semimartingales, continuous or discontinuous, on some probability space (Ω,F,{F t } tR + ,P).
Cheng, Tsung-Lin
core  

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

open access: yesAdvanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho   +3 more
wiley   +1 more source

Backward stochastic Volterra integral equations and some related problems

open access: yes, 2006
Backward stochastic Volterra integral equations (BSVIEs, for short) are introduced. The existence and uniqueness of adapted solutions are established.
Yong, Jiongmin, Jiongmin Yong
core   +2 more sources

Existence and Ulam stabilities for Hadamard fractional integral equations with random effects

open access: yesElectronic Journal of Differential Equations, 2016
This article concerns the existence and Ulam stabilities for a class of random integral equations via Hadamard's fractional integral. Our main tools is a random fixed point theorem with stochastic domain.
Said Abbas   +3 more
doaj  

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

open access: yesAdvanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak   +4 more
wiley   +1 more source

On a Stochastic Parabolic Integral Equation [PDF]

open access: yes, 2007
In this article we analyze the stochastic parabolic integral equation $$ u\left( {t,x,\omega } \right) = c_\alpha t^{ - 1 + \alpha } *\Delta u + \sum\limits_{k = 1}^\infty {\smallint _0^t g^k \left( {s,x,\omega } \right)} dw_s^k , $$ where t ≥ 0, x ∈ ℝ d , α ∈ (1/2, 1) and ω ∈ Ω. We take w k t ⌝ k = 1, 2, . . .
Wolfgang Desch, Stig-Olof Londen
openaire   +1 more source

Existence theorems of random solutions to stochastic functional integral equations

open access: yes, 1988
Some general stochastic functional integral equations are studied. General conditions for compactness, existence and uniqueness of solutions to stochastic functional integral equations are ...
Cahlon, B.
core   +1 more source

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