Results 21 to 30 of about 92,219 (262)

A note on neighborhoods of analytic functions having positive real part

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
Let P denote the set of all functions analytic in the unit disk D={z||z|0. For δ≥0, let Nδ(p) be those functions q(z)=1+∑k=1∞qkzk analytic in D with ∑k=1∞|pk−qk|≤δ.
Janice B. Walker
doaj   +1 more source

Sparse analytic systems

open access: yesForum of Mathematics, Sigma, 2023
Erdős [7] proved that the Continuum Hypothesis (CH) is equivalent to the existence of an uncountable family $\mathcal {F}$ of (real or complex) analytic functions, such that $\big \{ f(x) \ : \ f \in \mathcal {F} \big \}$ is countable for ...
Brent Cody, Sean Cox, Kayla Lee
doaj   +1 more source

A screw dislocation located outside, inside or on the interface of a parabolic elastic inhomogeneity

open access: yesArchives of Mechanics, 2021
Using conformal mapping techniques, superposition and analytic continuation, we derive analytic solutions to the problem of a screw dislocation interacting with a parabolic elastic inhomogeneity.
X. Wang, P. Schiavone
doaj   +1 more source

On real analytic functions of unbounded type [PDF]

open access: yesRevista Matemática Complutense, 2012
In this paper we prove several results on the existence of analytic functions on an infinite dimensional real Banach space which are bounded on some given collection of open sets and unbounded on others. In addition, we also obtain results on the density of some subsets of the space of all analytic functions for natural locally convex topologies on ...
López-Salazar Codes, Jerónimo   +2 more
openaire   +3 more sources

Generating series of all modular graph forms from iterated Eisenstein integrals

open access: yesJournal of High Energy Physics, 2020
We study generating series of torus integrals that contain all so-called modular graph forms relevant for massless one-loop closed-string amplitudes. By analysing the differential equation of the generating series we construct a solution for their low ...
Jan E. Gerken   +2 more
doaj   +1 more source

The Zero Set of a Real Analytic Function [PDF]

open access: yesMathematical Notes, 2020
A brief proof of the statement that the zero-set of a nontrivial real-analytic function in $d$-dimensional space has zero measure is provided.
openaire   +2 more sources

Spaces of Vector Valued Real Analytic Functions [PDF]

open access: yesTransactions of the American Mathematical Society, 1964
In this paper we study the spaces of weakly and strongly analytic functions with values in a locally convex topological vector space F and we look for conditions on F such that these two spaces (which are different in general) should coincide. In the case of vector valued C' functions and of vector valued holomorphic functions, Grothendieck proved (cf.
openaire   +1 more source

Piecewise Linearization of Real Analytic Functions

open access: yesPublications of the Research Institute for Mathematical Sciences, 1984
Une fonction définie sur un polyèdre est appelée P. L. s'il existe une triangulation du polyèdre telle que la restriction de la fonction à tout simplexe soit linéaire. Une triangulation \(C^{\infty}\) d'une variété réelle analytique M est un couple formé par un complexe simplicial K et d'un homéomorphisme \(g: | K| \to M\), où \(| K|\) est le polyèdre ...
openaire   +3 more sources

A remark on the intersections of subanalytic leaves [PDF]

open access: yesOpuscula Mathematica, 2016
We discuss a new sufficient condition - weaker than the usual transversality condition - for the intersection of two subanalytic leaves to be smooth. It involves the tangent cone of the intersection and, as typically non-transversal, it is of interest in
Maciej P. Denkowski
doaj   +1 more source

Boundary Analysis of Control Systems using Schwarz Lemma

open access: yesInternational Journal of Pioneering Technology and Engineering, 2022
In this paper, Schwarz lemma at the boundary is considered for analysis of transfer functions used in control systems. Two theorems are presented with their proofs by performing boundary analysis of the derivative of positive real functions evaluated at ...
Bülent Nafi Örnek, Timur Düzenli
doaj   +1 more source

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