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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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8.18. Pˇríklad. f (t) = e−a t2 , a > 0. Pak<br />

f ′ (t) = −2 a t e −a t2 <br />

. π p2<br />

= j p e− 4a .<br />

a<br />

D ˚usledek:<br />

f , f ′ , . . . , f (k) spojité funkce z L 1 (R) =⇒<br />

f (k) (t) . = (j p) k ˆ f (p)<br />

a dle Riemannova-Lebesgueova lemmatu<br />

lim<br />

|p|→∞ pkˆf (p) → 0 .<br />

Jan Hamhalter http://math.feld.cvut.cz/hamhalte Matematika pro Kybernetiku <strong>Lecture</strong> Notes 233 / 369

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