Results 71 to 80 of about 706 (184)

Implementation of the Subharmonic Compensation Algorithm Based on DSP+FPGA and Multiple Synchronous Rotating Coordinates

open access: yesKongzhi Yu Xinxi Jishu, 2016
It proposed a dual core realization method based on DSP + FPGA synchronous rotating coordinate subharmonic compensation algorithm, processed functions of the fundamental coordinate algorithm, main control and protection in DSP, while the computational ...
YIN Lujun, LI Yu, YAN Liangzhan
doaj  

Some estimates of special classes of integrals

open access: yesMathematical Modelling and Analysis, 2000
We study the integrals fb a f(t) exp(i| ln rt|σ) dt and obtain asymptotic formula for these functions of non‐regular growth. This is a peculiar kind of the theory asymptotic expansions.
T. I. Malyutina
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Large sets at infinity and Maximum Principle on unbounded domains for a class of sub-elliptic operators

open access: yesBruno Pini Mathematical Analysis Seminar, 2019
Maximum Principles on unbounded domains play a crucial role in several problems related to linear second-order PDEs of elliptic and parabolic type. In the present notes, based on a joint work with prof. E.
Stefano Biagi
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Bloch and Gap Subharmonic Functions

open access: yesReal Analysis Exchange, 2003
Let \({\mathbb B}_\alpha\) be the class of all positive subharmonic functions \(u\) in the open unit ball \(B_N\) of the space \({\mathbb R}^N\) such that \(G_\alpha (u) = \sup_{x\in B_N} (1-\| x\| ^2)^\alpha u(x) < +\infty.\) The analogous class \({\mathbb A}_\alpha\) of holomorphic in the disc functions \(f\) is defined by the condition \(\sup_{| z ...
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Subharmonic functions in certain regions [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
In a recent paper Hellsten, Kjellberg, and Norstad considered bounded subharmonic functions u in |
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ON PLURIHARMONICITY CRITERIA OF HARMONIC AND \(\mathcal M\)-HARMONIC FUNCTIONS IN THE ARBITRARY BALL OF \({\mathbb C}^{n}\)

open access: yesUral Mathematical Journal
This paper introduces the concept of \({\mathcal M}\)-harmonic function in an arbitrary ball  of  \({\mathbb C}^{n}\) and proves some criteria for pluriharmonicity of harmonic functions in this ball.
Mokhira D. Vaisova
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Separately Subharmonic and Harmonic Functions are Subharmonic

open access: yes, 2009
The paper has been withdrawn, because of an ...
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On functions subharmonic in a Lipschitz domain [PDF]

open access: yesProceedings of the American Mathematical Society, 1978
Let D be a starlike Lipschitz domain in R n
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Positive Lyapunov exponent of discrete analytic Jacobi operator

open access: yesElectronic Journal of Differential Equations, 2017
In this article, we study the Lyapunov exponent of discrete analytic Jacobi operator with a family of some mappings on the torus. By applying the theory of subharmonic functions, we prove that the Lyapunov exponent is positive, if the coupling number ...
Kai Tao
doaj  

On the Hardy-Littlewood maximal theorem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
The Hardy-Littlewood maximal theorem is extended to functions of class PL in the sense of E. F. Beckenbach and T. Radó, with a more precise expression of the absolute constant in the inequality.
Shinji Yamashita
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