From fadd6961c92393d86de69ec468f0a15a2f320252 Mon Sep 17 00:00:00 2001 From: Justin Gassner Date: Wed, 25 Sep 2024 00:26:13 +0200 Subject: weiter --- analytic2.tex | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'analytic2.tex') diff --git a/analytic2.tex b/analytic2.tex index 13b6700..0648130 100644 --- a/analytic2.tex +++ b/analytic2.tex @@ -22,7 +22,7 @@ that is, in the open disc with radius $t$ centered in the origin of the complex This is a well-known consequence of the convergence behavior of power series. \begin{definition}{Analyticity of Vector-Valued Functions}{} - Let $G \subset \CC$ be open and let $\hilb{H}$ be a Hilbert space. + Let $G \subset \CC$ be open and let $\hilb{X}$ be a Banach space. A function $f : G \to \hilb{H}$ is called \begin{itemize} \item \emph{strongly analytic} at $a \in G$, if the limit @@ -38,6 +38,10 @@ This is a well-known consequence of the convergence behavior of power series. \end{itemize} \end{definition} +\begin{lemma}{Uniform Boundedness Theorem}{uniform-boundedness-theorem} + If a collection of bounded linear operators from a Banach space into a normed space is pointwise bounded, then it is uniformly bounded. +\end{lemma} + \begin{lemma}{Equivalence of Weak and Strong Analyticity}{} Let $G \subset \CC$ be open. Then a Banach space-valued function is strongly analytic on $G$ if and only if it is weakly analytic on $G$. @@ -130,6 +134,3 @@ This is a well-known consequence of the convergence behavior of power series. \end{equation*} has a positive radius of convergence $t>0$. \end{myproof} - -\chapterbib -\cleardoublepage -- cgit v1.2.3-70-g09d2