Results 31 to 40 of about 1,143,398 (157)

On nouniqueness of solutions of Hamilton-Jacobi-Bellman equations

open access: yes, 2015
An example of a nonunique solution of the Cauchy problem of Hamilton-Jacobi-Bellman (HJB) equation with surprisingly regular Hamiltonian is introduced. The proposed Hamiltonian H(t,x,p) fulfills the local Lipschitz continuity with respect to the triple ...
Misztela, Arkadiusz
core   +1 more source

On the Geometry of Rectifiable Sets with Carleson and Poincar\'e-type Conditions [PDF]

open access: yes, 2015
A central question in geometric measure theory is whether geometric properties of a set translate into analytical ones. In 1960, E. R. Reifenberg proved that if an $n$-dimensional subset $M$ of $\mathbb{R}^{n+k}$ is well approximated by $n$-planes at ...
Jessica Merhej
semanticscholar   +1 more source

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

On Boas-Type Problem [PDF]

open access: yes, 2005
R.P. Boas has found necessary and sufficient conditions of belonging of function to Lipschitz class. From his findings it turned out, that the conditions on sine and cosine coefficients for belonging of function to Lip α(0 < α < 1) are the same ...
Tikhonov, Sergey Yu.   +1 more
core  

Lyapunov Stability Scheme Based Nonlinear Power Transfer Matrix Model for Power Control and Modeling of PMSG‐Wind Turbines

open access: yesEnergy Science &Engineering, EarlyView.
Nonlinear Power Transfer Matrix Model for Power Control and Modeling of PMSG‐Wind Turbines ABSTRACT This paper presents the Lyapunov stability scheme based nonlinear power transfer matrix (NLPTM) model for controlling and modeling the permanent magnet synchronous generator (PMSG) based wind turbine.
Muhammad Ali Bijarani   +5 more
wiley   +1 more source

Lipschitz Type Characterizations for Bergman Spaces [PDF]

open access: yesCanadian mathematical bulletin, 2006
We obtain new characterizations for Bergman spaces with standard weights in terms of Lipschitz type conditions in the Euclidean, hyperbolic, and pseudo-hyperbolic metrics. As a consequence, we prove optimal embedding theorems when an analytic function on
H. Wulan, Kehe Zhu
semanticscholar   +1 more source

On convergence rates for iteratively regularized Newton-type methods under a Lipschitz-type nonlinearity condition

open access: yesJournal of Inverse and Ill-posed Problems, 2014
Abstract We investigate a generalization of the well-known iteratively regularized Gauss–Newton method where the Newton equations are regularized variationally using general data fidelity and penalty terms. To obtain convergence rates, we use a general error assumption which has recently been shown to be useful for impulsive and Poisson ...
openaire   +2 more sources

Data‐Driven Dual‐Channel Dynamic Event‐Triggered Load Frequency Control for Multiarea Power Systems Under DoS Attacks

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT System dynamics uncertainties and cyberattacks pose significant challenges to load frequency control in power systems. This paper presents a data‐driven load frequency control strategy for interconnected multi‐area power systems subject to denial‐of‐service attacks that disrupt both feedforward and feedback communication channels.
Yuhao Chen   +4 more
wiley   +1 more source

On Bogovski\u{\i} and regularized Poincar\'e integral operators for de Rham complexes on Lipschitz domains

open access: yes, 2009
We study integral operators related to a regularized version of the classical Poincar\'e path integral and the adjoint class generalizing Bogovski\u{\i}'s integral operator, acting on differential forms in $R^n$.
Alan McIntosh   +15 more
core   +2 more sources

A Practical Real‐Time Observer‐Based Radiation Prediction Algorithm for Solar Plants

open access: yesEnergy Science &Engineering, EarlyView.
A novel radiation prediction method is proposed. The model's existence is verified by applying real data to an offline identifier. An adaptive state/parameter estimator is developed to identify the model. The identification process occurs in real‐time, independent of specific situations. The method offers universal radiation prediction.
S. Sepehr Tabatabaei   +2 more
wiley   +1 more source

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