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Lecture notes 2011 (slides), pdf.file - Katedra matematiky FEL ČVUT

Lecture notes 2011 (slides), pdf.file - Katedra matematiky FEL ČVUT

Lecture notes 2011 (slides), pdf.file - Katedra matematiky FEL ČVUT

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5.7. Věta. Pokud má mocninná ˇrada ∞<br />

n=0 an (z − z0) n<br />

poloměr konvergence R > 0, pak konverguje stejnoměrně na<br />

každém kruhu {z | |z − z0| < ϱ}, kde ϱ < R.<br />

D˚ukaz: Pro z ∈ {z | |z − z0| < ϱ} máme<br />

|an(z − z0) n | ≤ |an| ϱ n<br />

∞<br />

|an|ϱ n < ∞<br />

n=0<br />

Aplikujeme Weirstrasseovo kritérium.<br />

Jan Hamhalter http://math.feld.cvut.cz/hamhalte Matematika pro Kybernetiku <strong>Lecture</strong> Notes 121 / 369

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