Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Donald_C._Spencer> ?p ?o. }
- Donald_C._Spencer abstract "Donald Clayton Spencer (April 25, 1912 – December 23, 2001) was an American mathematician, known for major work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. He was born in Boulder, Colorado, and educated at the University of Colorado and MIT.He wrote a Ph.D. in diophantine approximation under J. E. Littlewood at the University of Cambridge, completed in 1939. He had positions at MIT and Stanford before his appointment in 1950 at Princeton University. There he was involved in a major series of collaborative works with Kunihiko Kodaira on the deformation of complex structures, which had a profound influence on the theory of complex manifolds and algebraic geometry, and the conception of moduli spaces.He also was led to formulate the d-bar Neumann problem, for the operator(see complex differential form) in PDE theory, to extend Hodge theory and the n-dimensional Cauchy-Riemann equations to the non-compact case. This is used to show existence theorems for holomorphic functions. He later worked on pseudogroups and their deformation theory, based on a fresh approach to overdetermined systems of PDEs (bypassing the Cartan-Kähler ideas based on differential forms by making an intensive use of jets). Formulated at the level of various chain complexes, this gives rise to what is now called Spencer cohomology, a subtle and difficult theory both of formal and of analytical structure. This is a kind of Koszul complex theory, taken up by numerous mathematicians during the 1960s. In particular a theory for Lie equations formulated by Malgrange emerged, giving a very broad formulation of the notion of integrability.After his death, a mountain peak outside of Silverton, Colorado was named in his honor.".
- Donald_C._Spencer almaMater Massachusetts_Institute_of_Technology.
- Donald_C._Spencer almaMater University_of_Cambridge.
- Donald_C._Spencer almaMater University_of_Colorado_Boulder.
- Donald_C._Spencer award National_Medal_of_Science.
- Donald_C._Spencer birthDate "1912-04-25".
- Donald_C._Spencer birthPlace Boulder,_Colorado.
- Donald_C._Spencer birthYear "1912".
- Donald_C._Spencer deathDate "2001-12-23".
- Donald_C._Spencer deathPlace Scottsdale,_Arizona.
- Donald_C._Spencer deathYear "2001".
- Donald_C._Spencer doctoralAdvisor G._H._Hardy.
- Donald_C._Spencer doctoralAdvisor John_Edensor_Littlewood.
- Donald_C._Spencer doctoralStudent Joseph_J._Kohn.
- Donald_C._Spencer doctoralStudent Patrick_X._Gallagher.
- Donald_C._Spencer doctoralStudent Phillip_Griffiths.
- Donald_C._Spencer doctoralStudent Pierre_Conner.
- Donald_C._Spencer doctoralStudent Robert_Hermann_(mathematician).
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- Donald_C._Spencer nationality United_States.
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- Donald_C._Spencer almaMater Massachusetts_Institute_of_Technology.
- Donald_C._Spencer almaMater University_of_Cambridge.
- Donald_C._Spencer almaMater University_of_Colorado_Boulder.
- Donald_C._Spencer awards National_Medal_of_Science.
- Donald_C._Spencer birthDate "1912-04-25".
- Donald_C._Spencer birthPlace Boulder,_Colorado.
- Donald_C._Spencer dateOfBirth "1912-04-25".
- Donald_C._Spencer dateOfDeath "2001-12-23".
- Donald_C._Spencer deathDate "2001-12-23".
- Donald_C._Spencer deathPlace Scottsdale,_Arizona.
- Donald_C._Spencer doctoralAdvisor "J. E. Littlewood and G.H. Hardy".
- Donald_C._Spencer doctoralStudents Joseph_J._Kohn.
- Donald_C._Spencer doctoralStudents Patrick_X._Gallagher.
- Donald_C._Spencer doctoralStudents Phillip_Griffiths.
- Donald_C._Spencer doctoralStudents Pierre_Conner.
- Donald_C._Spencer doctoralStudents Robert_Hermann_(mathematician).
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- Donald_C._Spencer name "Donald Spencer".
- Donald_C._Spencer name "Spencer, Donald C.".
- Donald_C._Spencer nationality United_States.
- Donald_C._Spencer placeOfBirth Boulder,_Colorado.
- Donald_C._Spencer placeOfDeath Scottsdale,_Arizona.
- Donald_C._Spencer shortDescription "American mathematician".
- Donald_C._Spencer title "Donald Clayton Spencer".
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- Donald_C._Spencer workplaces Princeton_University.
- Donald_C._Spencer description "American mathematician".
- Donald_C._Spencer description "American mathematician".
- Donald_C._Spencer subject Category:1912_births.
- Donald_C._Spencer subject Category:2001_deaths.
- Donald_C._Spencer subject Category:American_mathematicians.
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- Donald_C._Spencer subject Category:Princeton_University_faculty.
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- Donald_C._Spencer comment "Donald Clayton Spencer (April 25, 1912 – December 23, 2001) was an American mathematician, known for major work on deformation theory of structures arising in differential geometry, and on several complex variables from the point of view of partial differential equations. He was born in Boulder, Colorado, and educated at the University of Colorado and MIT.He wrote a Ph.D. in diophantine approximation under J. E. Littlewood at the University of Cambridge, completed in 1939.".
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