Homogeneous integral table algebras of degree three : a triology / Harvey I. Blau and Bangtent Xu (Part I), Z. Arad [and three others] (Part II), Harvey I. Blau (Part III).

Format:

Book

Author/Creator:

Blau, Harvey I., 1942- author.

Xu, Bangtent, author.

Arad, Z., author.

Series:

Memoirs of the American Mathematical Society ; no. 684.

Memoirs of the American Mathematical Society, 0065-9266 ; number 684

Language:

English

Subjects (All):

Commutative algebra.

Group rings.

Physical Description:

1 online resource (109 p.)

Edition:

1st ed.

Place of Publication:

Providence, Rhode Island : American Mathematical Society, 2000.

Language Note:

English

Summary:

Homogeneous integral table algebras of degree three with a faithful real element. The algebras of the title are classified to exact isomorphism; that is, the sets of structure constants which arise from the given basis are completely determined. Other results describe all possible extensions (pre-images), with a faithful element which is not necessarily real, of certain simple homogeneous integral table algebras of degree three. On antisymmetric homogeneous integral table algebras of degree three. This paper determines the homogeneous integral table algebras of degree three in which the given basis has a faithful element and has no nontrivial elements that are either real (symmetric) or linear, and where an additional hypothesis is satisfied. It is shown that all such bases must occur as the set of orbit sums in the complex group algebra of a finite abelian group under the action of a fixed-point-free automorphism oforder three. Homogeneous integral table algebras of degree three with no nontrivial linear elements. The algebras of the title which also have a faithful element are determined to exact isomorphism. All of the simple homogeneous integral table algebras of degree three are displayed, and the commutative association schemes in which all the nondiagonal relations have valency three and where some relation defines a connected graph on the underlying set are classified up to algebraic isomorphism.

Contents:

""Contents""; ""Preface""; ""Part I. Homogeneous Integral Table Algebras of Degree Three with a Faithful Real Element""; ""1. Introduction""; ""2. Known Facts and Some Consequences""; ""3. Homogeneous ITA's of Arbitrary Degree""; ""4. Some Results on Bases with a Standard Quotient""; ""5. Extensions of T[Sub(n)](3), n > 1""; ""6. Extensions of V[Sub(3)]""; ""7. Extensions of V[Sub(2)] and V[Sub(4)]""; ""8. Extensions of T[Sub(0)](3)""; ""9. Proof of the Main Theorem""; ""References""; ""Part II. On Antisymmetric Homogeneous Integral Table Algebras of Degree Three""; ""1. Introduction""

""2. General Facts""""3. The Universal Covering""; ""4. Perfect Triples""; ""References""; ""Part III. Homogeneous Integral Table Algebras of Degree Three With No Nontrivial Linear Elements""; ""1. Introduction""; ""2. Tame and Wild Elements ""; ""3. The Array""; ""4. The Cover""; ""5. Proofs of Theorem A and Corollary C""; ""6. Association Schemes""; ""References""

Notes:

"March 2000, volume 144, number 684 (second of 5 numbers)."

Includes bibliographical references.

Description based on online resource; title from PDF title page (ebrary, viewed April 11, 2015).

ISBN:

1-4704-0275-0