. "Guido Stampacchia (26 March 1922 - 27 April 1978) was a 20th-century Italian mathematician, known for his work on the theory of variational inequalities, the calculus of variation and the theory of elliptic partial differential equations."@en . . . "Guido Stampacchia"@en . "Italian mathematician" . "1922-03-26Z"^^ . "1922Z"^^ . "Stampacchia, Guido"@en . "1978-04-27Z"^^ . . "1978Z"^^ . "1926-03-26Z"^^ . . .