Results 31 to 40 of about 966,035 (317)

Norm and Numerical Radius Inequalities for Sums of Power Series of Operators in Hilbert Spaces

open access: yesAxioms
The main focus of this paper is on establishing inequalities for the norm and numerical radius of various operators applied to a power series with the complex coefficients h(λ)=∑k=0∞akλk and its modified version ha(λ)=∑k=0∞|ak|λk. The convergence of h(λ)
Najla Altwaijry   +2 more
doaj   +1 more source

Fibonacci Series from Power Series [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics, 2020
We show how every power series gives rise to a Fibonacci series and a companion series involving Lucas numbers. For illustrative purposes, Fibonacci series arising from trigonometric functions, inverse trigonometric functions, the gamma function and the digamma function are derived.
openaire   +2 more sources

A note on formal power series [PDF]

open access: yes, 2010
summary:In this note we investigate a relationship between the boundary behavior of power series and the composition of formal power series. In particular, we prove that the composition domain of a formal power series $g$ is convex and balanced which ...
Gan, Xiao-Xiong, Bugajewski, Dariusz
core   +1 more source

Claudin‐6 Protein Expression in Atypical Teratoid/Rhabdoid Tumors Is Strongly Enriched in the Molecular Subgroup AT/RT‐TYR

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Claudin‐6 has emerged as a promising immunotherapeutic target, yet protein‐level data in atypical teratoid/rhabdoid tumors (AT/RTs) have been inconsistent. We analyzed 36 well‐characterized AT/RT samples and found membranous claudin‐6 protein expression in 58% of cases, with striking enrichment in the molecular subgroup AT/RT‐TYR (100%) and ...
Victoria E. Fincke   +4 more
wiley   +1 more source

Two Points Taylor’s Type Representations for Analytic Complex Functions with Integral Remainders

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this paper we establish some two point weighted Taylor’s expansions for analytic functions f : D ⊆ ℂ→ ℂ defined on a convex domain D. Some error bounds for these expansions are also provided.
Dragomir Silvestru Sever
doaj   +1 more source

A solution for the neutron diffusion equation in the spherical and hemispherical reactors using the residual power series

open access: yesFrontiers in Physics, 2023
A novel analytical solution to the neutron diffusion equation is proposed in this study using the residual power series approach for both spherical and hemispherical fissile material reactors.
Ahmad El-Ajou   +4 more
doaj   +1 more source

Power series as Fourier series

open access: yesRocky Mountain Journal of Mathematics, 2022
Some spelling mistakes and minor typos corrected.
Chakrabarti, Debraj, Dawn, Anirban
openaire   +2 more sources

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi   +5 more
wiley   +1 more source

Diffusion-Wave Type Solutions to the Second-Order Evolutionary Equation with Power Nonlinearities

open access: yesMathematics, 2022
The paper deals with a nonlinear second-order one-dimensional evolutionary equation related to applications and describes various diffusion, filtration, convection, and other processes.
Alexander Kazakov, Anna Lempert
doaj   +1 more source

A three-phase to three-phase series-resonant power converter with optimal input current waveforms, Part I: control strategy [PDF]

open access: yes, 1988
A control strategy for multiphase-input multiphase-output AC to AC series-resonant (SR) power converters is presented. After reviewing some basics in SR power converters, a hierarchy of control mechanisms is presented, together with their respective ...
Huisman, H.; id_orcid   +2 more
core   +1 more source

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