Vlastimil Pták
Vlastimil Pták ( ; November 8 , 1925 in Prague – May 5 1999 ) was a Czech mathematician , who worked in functional analysis , theoretical numerical analysis , and linear algebra . 
<triplet> Vlastimil Pták <subj> November 8, 1925 <obj> date of birth <subj> Prague <obj> place of birth <subj> mathematician <obj> occupation