Dmitry Konstantinovich Faddeev (Russian: Дми́трий Константи́нович Фадде́ев, IPA: [ˈdmʲitrʲɪj kənstɐnʲˈtʲinəvʲɪtɕ fɐˈdʲe(j)ɪf]; 30 June 1907 – 20 October 1989) was a Soviet mathematician.
Dmitry was born June 30, 1907, about 200 kilometers southwest of Moscow on his father's estate.
His teachers included Ivan Matveyevich Vinogradov and Boris Nicolaevich Delone.
D. K. Faddeev and V. N. Faddeeva co-authored Numerical Methods in Linear Algebra in 1960, followed by an enlarged edition in 1963.
For instance, they developed an idea of Urbain Leverrier to produce an algorithm to find the resolvent matrix