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seen Oct 9 '12 at 16:08

Oct
8
comment Question about existence of function with given derivatives
Yes, but in Hormander books is assumed additionally that each $f_n$ has compact support.
Oct
8
awarded  Student
Oct
8
comment Question about existence of function with given derivatives
Thanks for help. I did not know earlier that it is Borel's lemma.
Oct
8
asked Question about existence of function with given derivatives