(9) (Schwartz space) The Schwartz space on R, S(R) is the set of all C* functions f such that its derivatives f',f(2),.,f(k),... decreasing in the sense that supeR |æ|*| f(O (x)| < ∞ for all k, l > 0. Show that f(x) = e=** € S(R) but e¯-l#| ¢ S(R). are all rapidly

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(9) (Schwartz space) The Schwartz space on R, S(R) is the set of all
C functions f such that its derivatives f',f(2),.f(k),... are all rapidly
decreasing in the sense that supeR r|*|f® (x)| < ∞ for all k, 1> 0.
Show that f(x) = e* € S(R) but e-lel ¢ S(R).
Transcribed Image Text:(9) (Schwartz space) The Schwartz space on R, S(R) is the set of all C functions f such that its derivatives f',f(2),.f(k),... are all rapidly decreasing in the sense that supeR r|*|f® (x)| < ∞ for all k, 1> 0. Show that f(x) = e* € S(R) but e-lel ¢ S(R).
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