Search results for "algebra"

showing 10 items of 4129 documents

Algebras of unbounded operators and physical applications: a survey

2009

After a historical introduction on the standard algebraic approach to quantum mechanics of large systems we review the basic mathematical aspects of the algebras of unbounded operators. After that we discuss in some details their relevance in physical applications.

AlgebraAlgebras of unbounded operatorComputer scienceComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATIONAlgebraic dynamicFOS: Physical sciencesStatistical and Nonlinear PhysicsRelevance (information retrieval)Mathematical Physics (math-ph)Algebraic numberQuantum systems with infinite degrees of freedomSettore MAT/07 - Fisica MatematicaMathematical Physics
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The cancellation property for direct products of analytic space germs

1990

AlgebraAnalytic spaceComplex analytic spaceGeneral MathematicsApproximation theoremCancellation propertyCalculusDirect productMathematicsMathematische Annalen
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Algebraic Frobenius groups

2000

AlgebraApplied MathematicsGeneral MathematicsSettore MAT/03 - GeometriaAlgebraic numberAlgebraic groups Frobenius groupsMathematics
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Conditioning on MV-algebras and additive measures —I

1997

Abstract We present a lattice-ordered semigroup approach for the foundation of conditional events which covers the special situations where the underlying (unconditional) events are Boolean or fuzzy, respectively. Our proposal is quite different from other, ring theoretical, approaches. The problem of extending additivity of uncertainty measures from unconditional to conditional events will be discussed.

AlgebraArtificial IntelligenceLogicTwo-element Boolean algebraFuzzy setFuzzy numberBoolean expressionStone's representation theorem for Boolean algebrasBoolean algebras canonically definedComplete Boolean algebraFuzzy logicMathematicsFuzzy Sets and Systems
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Is there an implicit level of representation?

1994

AlgebraBehavioral NeuroscienceNeuropsychology and Physiological PsychologyPhysiologyRepresentation (systemics)PsychologyBehavioral and Brain Sciences
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A synchronization property of pure subsemigroups of a free semigroup

1981

AlgebraCancellative semigroupAlgebra and Number TheoryProperty (philosophy)SemigroupSynchronization (computer science)Algebra over a fieldMathematicsSemigroup Forum
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Rationality and normal 2-complements

2008

Abstract We study the finite groups in which every irreducible rational valued character is linear, and those in which every rational element is central.

AlgebraCharacter (mathematics)Algebra and Number TheoryRational pointRationalityRational classesRational functionElement (category theory)Rational charactersMathematicsJournal of Algebra
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Ordinary and p-modular character degrees of solvable groups

1991

AlgebraCharacter (mathematics)Algebra and Number Theorybusiness.industrySolvable groupModular designbusinessMathematicsJournal of Algebra
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Some Open Problems on Coprime Action and Character Correspondences

1994

AlgebraCharacter (mathematics)Coprime integersAction (philosophy)General MathematicsArithmeticMathematicsBulletin of the London Mathematical Society
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Character problems in classical representation theory

1987

AlgebraCharacter (mathematics)General MathematicsTrivial representationReal representationRepresentation theoryMathematicsRendiconti del Seminario Matematico e Fisico di Milano
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