Results 11 to 20 of about 4,818,273 (341)
Comprehensive Studies on Operational Principles for Maximum Power Point Tracking in Photovoltaic Systems [PDF]
IEEE Access, 2019 Maximum power point tracking (MPPT) is essential in Photovoltaic (PV) systems, which has drawn significant research effort in the past. The operation is to adjust the power interfaces so that the operating characteristics of the consumption and the PV ...
Xingshuo Li +3 more
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, 2016 We give full boundary extensions to two fundamental estimates in the theory of elliptic PDE, the weak Harnack inequality and the quantitative strong maximum principle, for uniformly elliptic equations in non-divergence form.
Boyan Sirakov
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Two maximum principles for a nonlinear fourth order equation from thin plate theory
Electronic Journal of Qualitative Theory of Differential Equations, 2014 We develop two maximum principles for a nonlinear equation of fourth order that arises in thin plate theory. As a consequence, we obtain uniqueness results for the corresponding fourth order boundary value problem under Navier boundary conditions as ...
Cristian-Paul Danet
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Maximum principles and related problems for a class of nonlocal extremal operators [PDF]
Annali di Matematica Pura ed Applicata, 2021 We study the validity of the comparison and maximum principles and their relation with principal eigenvalues, for a class of degenerate nonlinear operators that are extremal among operators with one-dimensional fractional diffusion.
I. Birindelli, G. Galise, Delia Schiera
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Principal eigenvalues for k-Hessian operators by maximum principle methods
Mathematics in Engineering, 2021 For fully nonlinear $k$-Hessian operators on bounded strictly $(k-1)$-convex domains $\Omega$ of $\R^N$, a characterization of the principal eigenvalue associated to a $k$-convex and negative principal eigenfunction will be given as the supremum over ...
Isabeau Birindelli, Kevin R. Payne
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On enforcing maximum principles and achieving element-wise species balance for advection–diffusion–reaction equations under the finite element method [PDF]
Journal of Computational Physics, 2015 Maruti Kumar Mudunuru, K. B. Nakshatrala
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Fractal and Fractional, 2022 This paper is devoted to studying a class of fractional differential equations (FDEs) with the Prabhakar fractional derivative of Caputo type in an analytical manner.
Mohammed Al-Refai +2 more
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Maximum Principles and ABP Estimates to Nonlocal Lane–Emden Systems and Some Consequences
Advanced Nonlinear Studies, 2021 This paper deals with maximum principles depending on the domain and ABP estimates associated to the following Lane–Emden system involving fractional Laplace operators:
Leite Edir Junior Ferreira
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Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020 In this paper we are going to investigate a free boundary value problem for the anisotropic N-Laplace operator on a ring domain Ω:=Ω0\Ω¯1⊂N\Omega : = {\Omega _0}\backslash {\bar \Omega _1} \subset {\mathbb{R}^N}, N ≥ 2.
Nicolescu A. E., Vlase S.
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Journal of the Australian Mathematical Society, 1979 AbstractLet K be a nonempty compact set in a Hausdorff locally convex space, and F a nonempty family of upper semicontinuous convex-like functions from K into [–∞, ∞). K is partially ordered by F in a natural manner. It is shown among other things that each isotone, upper semicontinuous and convex-like function g: K → [ – ∞, ∞) attains its K-maximum at
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