About: E. T. Parker

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Ernest Tilden Parker (1926–1991) was a professor emeritus of the University of Illinois at Urbana–Champaign. He is notable for his breakthrough work along with R. C. Bose and S. S. Shrikhande in their disproof of the famous conjecture made by Leonhard Euler dated 1782 that there do not exist two mutually orthogonal latin squares of order for every . He was at that time employed in the UNIVAC division of Remington Rand, but he subsequently joined the mathematics faculty at t University of Illinois. In 1968, he and a Ph.D. student, K. B. Reid, disproved a conjecture on tournaments by Paul Erdős and Leo Moser.

Attributes	Values
rdf:type	Thing foaf:Person person dul:NaturalPerson Eukaryote Person Human Animal yago:WikicatAmericanMathematicians animal eukaryote scientist species schema:Person yago:WikicatLivingPeople yago:WikicatOhioStateUniversityAlumni Scientist yago:Alumnus109786338 yago:CausalAgent100007347 yago:Intellectual109621545 yago:LivingThing100004258 yago:Mathematician110301261 yago:Object100002684 yago:Organism100004475 yago:Person100007846 yago:PhysicalEntity100001930 yago:YagoLegalActor yago:YagoLegalActorGeo yago:Scholar110557854 yago:Scientist110560637 yago:Whole100003553 umbel-rc:Scientist
rdfs:label	إي. تي باركر (ar) E. T. Parker (en) Ernest Tilden Parker (de) Ernest Tilden Parker (pt)
rdfs:comment	إي. تي باركر (بالإنجليزية: E. T. Parker)‏ هو رياضياتي أمريكي، ولد في 1926، وتوفي في 1991. (ar) Ernest Tilden Parker (1926 — 1991) foi um matemático erstadunidense. (pt) Ernest Tilden Parker (* 1926; † 1991) war ein US-amerikanischer Mathematiker. Parker wurde 1957 an der Ohio State University bei Marshall Hall promoviert (On quadruply transitive groups). Er war Professor an der University of Illinois at Urbana-Champaign. 1968 widerlegte er mit seinem Studenten K. B. Reid eine Vermutung von Paul Erdős und Leo Moser über Tournamente. (de) Ernest Tilden Parker (1926–1991) was a professor emeritus of the University of Illinois at Urbana–Champaign. He is notable for his breakthrough work along with R. C. Bose and S. S. Shrikhande in their disproof of the famous conjecture made by Leonhard Euler dated 1782 that there do not exist two mutually orthogonal latin squares of order for every . He was at that time employed in the UNIVAC division of Remington Rand, but he subsequently joined the mathematics faculty at t University of Illinois. In 1968, he and a Ph.D. student, K. B. Reid, disproved a conjecture on tournaments by Paul Erdős and Leo Moser. (en)
foaf:name	E. T. Parker (en)
name	E. T. Parker (en)
dcterms:subject	1926 births 1991 deaths 20th-century American mathematicians University of Illinois Urbana-Champaign faculty Combinatorialists Ohio State University alumni Latin squares
Wikipage page ID	23269422 (xsd:integer)
Wikipage revision ID	1095980316 (xsd:integer)
Link from a Wikipage to another Wikipage	Paul Erdős Remington Rand University of Illinois at Urbana–Champaign Graeco-Latin square Conjecture Leonhard Euler Combinatorics Leo Moser 1926 births 1991 deaths 20th-century American mathematicians University of Illinois Urbana-Champaign faculty UNIVAC K. B. Reid Latin square Combinatorialists Ohio State University alumni Marshall Hall (mathematician) Latin squares Ohio State University Raj Chandra Bose Sharadchandra Shankar Shrikhande
sameAs	E. T. Parker E. T. Parker E. T. Parker E. T. Parker E. T. Parker E. T. Parker E. T. Parker E. T. Parker E. T. Parker
work institutions	University of Illinois at Urbana–Champaign
dbp:wikiPageUsesTemplate	dbt:Authority_control dbt:Citation dbt:Reflist dbt:Short_description dbt:Infobox_scientist
alma mater	Ohio State University
birth date	1926 (xsd:integer)
death date	1991 (xsd:integer)
field	Combinatorics
known for	Graeco-Latin square
nationality	American (en)
has abstract	إي. تي باركر (بالإنجليزية: E. T. Parker)‏ هو رياضياتي أمريكي، ولد في 1926، وتوفي في 1991. (ar) Ernest Tilden Parker (* 1926; † 1991) war ein US-amerikanischer Mathematiker. Parker wurde 1957 an der Ohio State University bei Marshall Hall promoviert (On quadruply transitive groups). Er war Professor an der University of Illinois at Urbana-Champaign. Parker fand ein Gegenbeispiel (n=10) zu einer Vermutung von Euler, dass keine orthogonalen lateinischen Quadrate der Ordnung existieren, nachdem dies etwa gleichzeitig schon Raj Chandra Bose und S. S. Shrikhande gelungen war (n=22). Sie fanden ein Gegenbeispiel zur Vermutung für n=22. 1960 zeigte er mit Shrikhande und Bose, dass für alle Ordnungen orthogonale lateinische Quadrate existieren. Damals war er bei Remington Rand in der Abteilung UNIVAC. Sein Gegenbeispiel fand er aber nicht durch Computersuche, sondern in seiner Freizeit. 1968 widerlegte er mit seinem Studenten K. B. Reid eine Vermutung von Paul Erdős und Leo Moser über Tournamente. (de) Ernest Tilden Parker (1926–1991) was a professor emeritus of the University of Illinois at Urbana–Champaign. He is notable for his breakthrough work along with R. C. Bose and S. S. Shrikhande in their disproof of the famous conjecture made by Leonhard Euler dated 1782 that there do not exist two mutually orthogonal latin squares of order for every . He was at that time employed in the UNIVAC division of Remington Rand, but he subsequently joined the mathematics faculty at t University of Illinois. In 1968, he and a Ph.D. student, K. B. Reid, disproved a conjecture on tournaments by Paul Erdős and Leo Moser. Parker received his Ph.D. for work 'On Quadruply Transitive Groups' at Ohio State University in 1957; his advisor was Marshall Hall Jr. (en) Ernest Tilden Parker (1926 — 1991) foi um matemático erstadunidense. (pt)
doctoral advisor	Marshall Hall (mathematician)
doctoral advisor	Marshall Hall (mathematician)

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