Vlastimil Pták (Czech pronunciation: [ˈvlascɪmɪl ˈptaːk]; November 8, 1925 in Prague – May 5 1999) was a Czech mathematician, who worked in functional analysis, theoretical numerical analysis, and linear algebra.
Notable early work include generalizations of the open mapping theorem.
[1] During 1945–49 Vlastimil Pták studied mathematics and physics at the Charles University in Prague.
Later, he worked at the university and since 1952 in Mathematical Institute of Czechoslovak Academy of Sciences.
He had three Ph.D. students: Nicholas Young, Michal Zajac and Miroslav Engliš.