Stampacchia was born in Naples, Italy, to Emanuele Stampacchia and Giulia Campagnano. He obtained his high school certification from the Liceo-Ginnasio Giambattista Vico in Naples in classical subjects, although he showed a stronger aptitude for mathematics and physics.[1]
In 1940 he was admitted to the Scuola Normale Superiore di Pisa for undergraduate studies in pure mathematics. He was drafted in March 1943 but nevertheless managed to take examinations during the summer before joining the resistance movement against the Germans in the defence of Rome in September. He was discharged in June 1945.[1]
In 1944 he won a scholarship to the University of Naples which allowed him to continue his studies. In the 1945–1946 academic year he declined a specialization at the Scuola Normale in the Faculty of Sciences in favour of an assistant position at the Istituto Universitario Navale.[2] In 1949 he was appointed as assistant with tenure to the chair of mathematical analysis, and in 1951 he obtained his "Libera docenza".[3]
In 1952 won a national competition for the chair at the University of Palermo. He was nominated Professor on Probation at the University of Genoa later the same year and was promoted to full Professor in 1955.
He married fellow student Sara Naldini in October 1948. Children Mauro, Renata, Giulia, and Franca were born in 1949, 1951, 1955 and 1956 respectively.[1]
Stampacchia accepted the position of Professor of Mathematical Analysis at the University of Rome in 1968 and returned to the University of Pise in 1970 and subsequently with the chair of Higher Analysis at the Scuola Normale Superiore. In early 1978 he suffered a serious heart attack and died of heart arrest on 27 April that year while he was in Paris as a Visiting Professor.[1]
with Sergio Campanato, Sulle maggiorazioni in Lp nella teoria delle equazioni ellittiche, Bollettino dell'Unione Matematica Italiana, Bologna, Zanichelli, 1965.
with Jaurès Cecconi, Lezioni di analisi matematica, I: Funzioni di una variabile, Napoli: Liguori editore, 1974, ISBN88-207-0127-8
with Jaurès Cecconi, Lezioni di analisi matematica, II: Funzioni di più variabili, Napoli: Liguori, 1980, ISBN88-207-1022-6
with Jaurès Cecconi and Livio Clemente Piccinini, Esercizi e problemi di analisi matematica, Napoli: Liguori, 1996, ISBN88-207-0744-6, ISBN978-88-207-0744-6
^The "free professorship" (in a literal free English translation) was an academic title similar to the German "Habilitation", no longer in force in Italy since 1970.
De Angelis, P. L.; Sbordone, C., eds. (1999), "Guido Stampacchia", Matematici all'Istituto Universitario Navale (1926–1976) [Mathematicians at the Istituto Universitario Navale (1926–1976)] (in Italian), Napoli: Istituto Universitario Navale/RCE Edizioni, pp. 37–38. The chapter on Stampacchia in the a book collecting brief biographical sketches and bibliographies of the scientific the work produced by the mathematicians who worked at the Parthenope University of Naples during their stay.
Ridolfi, Roberto, ed. (1976), "Guido Stampacchia", Biografie e bibliografie degli Accademici Lincei [Biographies and bibliographies of the Lincean Academicians] (in Italian), Roma: Accademia Nazionale dei Lincei, pp. 637–638. The biographical and bibliographical entry (updated up to 1976) on Guido Stampacchia, published under the auspices of the Accademia dei Lincei in a book collecting many profiles of its living members up to 1976.