Everett C. Dade
Alma materHarvard University, Princeton University
Known forDade isometry, Dade conjecture
SpouseCatherine Doléans-Dade
Scientific career
FieldsMathematics
InstitutionsUniversity of Illinois at Urbana–Champaign
ThesisMultiplicity and Monoidal Transformations (1960)
Doctoral advisorO. Timothy O'Meara

Everett Clarence Dade is a mathematician at University of Illinois at Urbana–Champaign working on finite groups and representation theory, who introduced the Dade isometry and Dade's conjecture. While an undergraduate at Harvard University, he became a Putnam Fellow twice, in 1955 and 1957.[1]

Work

The Dade isometry is an isometry from class functions on a subgroup H with support on a subset K of H to class functions on a group G (Collins 1990, 6.1). It was introduced by Dade (1964) as a generalization and simplification of an isometry used by Feit & Thompson (1963) in their proof of the odd order theorem, and was used by Peterfalvi (2000) in his revision of the character theory of the odd order theorem.

Dade's conjecture is a conjecture relating the numbers of characters of blocks of a finite group to the numbers of characters of blocks of local subgroups.

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