Positivity · 1997 · 28 citations · 11 references
Natural SciencesMathematicsAlgebraHilbert Space FormalismLinear AlgebraOperator TheorySpectral AnalysisSpectral MethodsSpectral TheoryOperator AlgebrasSpectral Theorem
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M. S. Ramanujan, Helmut Schaefer · American Mathematical Monthly · 1967 · 4K citations
A Course in Functional Analysis.
T. W. Gamelin, John B. Conway · American Mathematical Monthly · 1986 · 2.4K citations
Spectrum preserving linear mappings in Banach algebras
Bernard Aupetit, Toit Mouton · Studia Mathematica · 1994 · 84 citations · Full text