Results 31 to 40 of about 1,239,655 (312)
Bounded Cosine Functions Close to Continuous Scalar Bounded Cosine Functions [PDF]
Integral Equations and Operator Theory, 2016 Let $(C(t))\_{t \in R}$ be a cosine function in a unital Banach algebra. We show that if $sup\_{t\in R}\Vert C(t)-cos(t)\Vert \textless{} 2$ for some continuous scalar bounded cosine function $(c(t))\_{t\in \R},$ then the closed subalgebra generated by $(C(t))\_{t\in R}$ is isomorphic to $\C^k$ for some positive integer $k.$ If, further, $sup\_{t\in \R}
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Power bounded and power bounded below composition operators on Dirichlet Type spaces
AIMS Mathematics, 2021 Motivated by [11,12], under some conditions on weighted function K, we investigated power bounded and power bounded below composition operators on Dirichlet Type spaces $ {\mathcal{D}_{K}} $.
Liu Yang, Ruishen Qian
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Boundary functions for bounded harmonic functions [PDF]
Transactions of the American Mathematical Society, 1969 Let D be the open unit disk in the complex plane and let C be its boundary, the unit circle. If 4 E C, then by an arc at t we mean a simple arc y with one endpoint at 4 such that y { } ( D. In this paper we use the term boundazy function in the following sense.
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Characteristic functions on the boundary of a planar domain need not be traces of least gradient functions [PDF]
, 2017 Given a smooth bounded planar domain, we construct a compact set on the boundary s.t. its characteristic function is not the trace of a least gradient function.
Santos, Mickael Dos
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Boundedness and continuity of superposition operator on Er(p) and Fr(p) [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2002 Let X ∈ {Er(p)V , Fr(p)}, in this research, necessary and sufficient conditions are given for superposition operator to act from X into the space l1. Moreover, necessary and sufficient conditions are obtained for superposition operator acting from X into
Assa-aree Sama-ae
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lp,q-bounded sequences in function spaces
Journal of Function Spaces and Applications, 2003 A sequence of measurable functions {fn} is called lp,q-bounded sequence ...
S. Ya. Novikov
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Fractal and Fractional, 2022 The main focus of this research is to solve certain coefficient-related problems for analytic functions that are subordinated to a unique trigonometric function.
Lei Shi +4 more
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Bounds for bounded motion around a perturbed fixed point [PDF]
, 1988 We consider a dissipative map of the plane with a bounded perturbation term. This perturbation represents e.g. an extra time dependent term, a coupling to another system or noise. The unperturbed map has a spiral attracting fixed point.
Damme, Ruud van, Valkering, Theo P.
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Error Bounds for Fractional Integral Inequalities with Applications
Fractal and FractionalFractional calculus has been a concept used to obtain new variants of some well-known integral inequalities. In this study, our main goal is to establish the new fractional Hermite–Hadamard, and Simpson’s type estimates by employing a differentiable ...
Nouf Abdulrahman Alqahtani +4 more
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Malaysian Journal of Computing, 2022 In this paper, the authors introduce and study a new class of analytic p-valent functions and its connections with some famous subclasses of analytic and univalent functions associated with shell-like curve and modified sigmoid function in the open unit ...
Jamiu Olusegun Hamzat +1 more
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