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GianCarlo Rota's father, Giovanni Rota, was a civil engineer and architect who specialised in antiearthquake structures. Giovanni Rota was a prominent antifascist and his name appears on a death list constructed by Mussolini. GianCarlo was born into a talented family in Vigevano, many members of his family had achieved fame in their areas of expertise, for example one of GianCarlo's uncles, Flaiano, wrote scripts for Federico Fellini's films, including La Dolce Vita.
GianCarlo was educated in Italy up to the age of thirteen in 1945. This was near the end of World War II and, due to Giovanni Rota's antifascist views, the family was forced to leave Vigevano to escape Mussolini's death squads. Giovanni Rota took his family to northern Italy where they hide for a time before crossing the border into Switzerland. The family eventually escaped to Ecuador where GianCarlo completed his secondary school education. The positive side to this remarkable escape story was that Rota was fluent in English, Italian, Spanish and French.
Rota entered the United States in 1950 at the age of eighteen to undertake his university studies. He entered Princeton University in 1950 and received a BA summa cum laude in 1953. After graduating, Rota entered Yale University where he studied for his Master's Degree in Mathematics which was awarded in 1954. He then undertook doctoral studies, supervised by Jacob T Schwartz, and he was awarded a PhD from Yale in 1956 for his thesis Extension theory of differential operators. His thesis supervisor wrote:
[Rota] was my first graduate student at Yale. He began as a functional analyst and after a few years moved on to combinatorics, where he became a leading national and international figure. He really loved mathematics all his life very passionately. He was also a person of great cultural and literary attainment. He loved to write, loved to edit. He was a gourmet of mathematics. He was ebullient, a bit of a raconteur.
In this same year that he was awarded his doctorate, Rota married Teresa Rondón and he received a Postdoctoral Research Fellowship to undertake research at the Courant Institute at New York University. After spending the year 195657 in New York, Rota was appointed as Benjamin Peirce Instructor at Harvard University. He held this post until 1959 when he joined the faculty at Massachusetts Institute of Technology. With the exception of two years, 1965 to 1967, when he was at the Rockefeller University, Rota remained at MIT for the rest of his career.
Rota was given the title Professor of Applied Mathematics at MIT but in 1972 his title was changed to Professor of Applied Mathematics and Philosophy. He is the only professor at MIT ever to have such a title. However, he had many other roles outside MIT. Rota had a long association with the Los Alamos Scientific Laboratory where he enjoyed being with his friend Ulam and collaborating with him. He served as a consultant to the Laboratory from in 1966 and, in 1971, he was made a Senior Fellow of the Laboratory. M Waterman writes in [3]:
Rota soon became part of Los Alamos. He gave lectures that were deeply informative, polished works of art that made him known throughout the Lab. The topics were wideranging: differential equations, ergodic theory, nonstandard analysis, probability, and of course, combinatorics.
Rota was also a consultant with the Rand Corporation from 1966 to 1971 and with the Brookhaven National Laboratory from 1969 to 1973.
As we have indicated above, Rota worked on functional analysis for his doctorate and, up to about 1960, he wrote a series of papers on operator theory. Two papers in 195960, although still in the area of operator theory, looked at ergodic theory which is an area which requires considerable combinatorial skills. These papers seem to have led Rota away from operator theory and into the area of combinatorics. His first major work on combinatorics, which was to change the direction of the whole subject, was On the Foundations of Combinatorial Theory which Rota published in 1964.
Rota received the Steele Prize from the American Mathematical Society in 1988. The Prize citation singles out the 1964 paper On the Foundations of Combinatorial Theory as:
... the single paper most responsible for the revolution that incorporated combinatorics into the mainstream of modern mathematics.
This paper was the first of a series of ten papers with this main title, all ten have subtitles (for example this first one was subtitled Theory of Möbius functions ) and all the remaining nine have between one and three additional coauthors. Papers two to nine were all published between 1970 and 1974 with the tenth being published in 1992.
Richard Guy, reviewing [1] in 1980, writes:
Combinatorists owe much to GainCarlo Rota, already a "respectable" mathematician when he interested himself in combinatorics and embarked on his gallant crusade to unify the subject which almost everyone regarded as being at best a bag of clever isolated tricks; to reverse the tide of abstraction in mathematics; to return to the concreteness of a century ago. ... Rota observes that combinatorics is providing the essential continuing link between mathematics and the sciences: biology (structure of large molecules), linguistics (contextfree languages, automata theory), physics (statistical mechanics, phase transition problems, elementary particles).
Rota received many awards for his outstanding contributions to numerous areas. In addition to the Steele Prize mentioned above, he was awarded the Medal for Distinguished Service from the National Security Agency in 1992. He was elected to the National Academy of Sciences in 1982, was vicepresident of the American Mathematical Society in 199597 and the Society's Colloquium Lecturer in 1998. He was also a fellow of the American Academy of Arts and Science, a member of the Academia Argentina de Ciencias, a fellow of the Institute of Mathematical Statistics, the Heidegger Circle, the American Association for the Advancement of Science and the Husserl Circle. He received the 199697 James R Killian Jr. Faculty Achievement Award from MIT for his work as a:
... leading innovator and theorist in the transformation of combinatorics from a disparate collection of facts and techniques unworthy of serious mathematical consideration into an active, systematic and profound branch of modern pure and applied mathematics.
He held four honorary degrees from the University of Strasbourg (1984), the University L'Aquila (1990), the University of Bologna (1996), and Brooklyn Polytechnical University (1997).
E F Beschler writes in [3]:
GianCarlo Rota was a mathematician and a philosopher, and the richness of his writing in these fields was known to both communities. I also like to think of him as a poet  not in the formal sense, since to the best of my knowledge he never wrote a poem  but in the larger sense of a person who expresses himself with imaginative power and beauty of thought, even when many of these thoughts were sardonic reflections on people, ideas, institutions, and the general condition of humanity. His sense of humour was biting and deep  and full of truth. And his modes of expression poetic in a fundamental sense of the word.
Rota died in his sleep and was found in bed on the afternoon of 19 April 1999. He had been due to give a series of three lectures at Temple University, the Groswald Memorial Lectures, on the previous day and, when he failed to arrive in Philadelphia, a check was made at his home. The cause of his death was atherosclotic cardiovascular disease. There were many tributes to Rota after his death, for example David Sharp wrote:
The first thing you noticed about GianCarlo was his love for the life of the mind. He lived and breathed mathematics and philosophy. He had a passion for ideas, an uncompromising dedication to the truth, and a boundless curiosity.
Brian D Taylor, one of the last of Rota's fortytwo doctoral students, wrote:
I remember Rota's characteristic generosity: The research problems he shared freely, not just with his graduate students, but with anyone he talked to or taught; the dinners out at good restaurants ... I remember travelling to his apartment in Harvard square to talk about my work even when he wasn't going to be at MIT. I remember telling him about results in my thesis, drawing tableaux on the slightly rickety easel he had up in his living room. And I remember a weekend spent at his apartment, mostly sitting at the Macintosh in his bedroom redrafting my first paper; when I shown him my first draft of our work, he asked "are you trying to hide your techniques from your readers?'' By the time that weekend was over, the techniques, and the paper were clear.
Article by: J J O'Connor and E F Robertson
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List of References (9 books/articles)
 Some Quotations (5)

Mathematicians born in the same country

Additional Material in MacTutor
Honours awarded to GianCarlo Rota (Click below for those honoured in this way)  
Hedrick lecturer  1967 
AMS Steele Prize  1988 
AMS Colloquium Lecturer  1998 
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