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Proceedings of the American Mathematical Society, 1957 This conjecture is cited in a Hilbert space context by Halmos [I1 and, more recently, by Putnam [2 ], again for Hilbert space. In this note we will prove this conjecture as it stands above. In fact, it is an easy corollary of the more general algebraic theorem (2) formulated below.
David C. Kleinecke
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On the Spectra of Commutators [PDF]
Proceedings of the American Mathematical Society, 1954 2. R. Godement, Les fonctions de type positif et la theorie des groupes, Trans. Amer. Math. Soc. vol. 63 (1948) pp. 1-84. 3. P. R. Halmos, Measure theory, New York, 1950. 4. R. J. Koch, Tulane University Dissertation, 1953. 5. L. H. Loomis, An introduction to abstract harmonic analysis, New York, 1953. 6. K.
C. R. Putnam
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Analytical expressions for the time evolution of spin systems affected by two or more interactions [PDF]
Magnetic ResonanceAnalytical expressions for the description of the time evolution of spin systems beyond product–operator formalism (POF) can be obtained if a low-dimensional subspace of the Liouville space has been found in which the time evolution of the spin system ...
G. Hempel
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Compactness of Commutators for Riesz Potential on Local Morrey-type spaces [PDF]
Қарағанды университетінің хабаршысы. Математика сериясы, 2023 The paper considers Morrey-type local spaces from LM^w_pθ. The main work is the proof of the commutator compactness theorem for the Riesz potential [b, I_α] in local Morrey-type spaces from LM^w1_pθ to LM^w2_qθ.
D.T. Matin +2 more
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On commutators of matrices [PDF]
Kodai Mathematical Journal, 1949 Hiraku Tôyama
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Commutative–non-commutative dualities [PDF]
Canadian Journal of Physics, 2020 We show that it is in principle possible to construct dualities between commutative and non-commutative theories in a systematic way. This construction exploits a generalization of the exact renormalization group equation (ERG). We apply this to the simple case of the Landau problem and then generalize it to the free and interacting non-canonical ...
Scholtz, F.G. +2 more
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The structure of groups with cyclic commutator subgroups indecomposable to a subdirect product of groups [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2021 The article studies finite groups indecomposable to subdirect product of groups (subdirectly irreducible groups), commutator subgroups of which are cyclic subgroups.
Kozlov, Vladimir Anatolievich +1 more
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The Economic Journal, 2023 Abstract People care about crime, with the spatial distribution of both actual and perceived crime affecting the local amenities from living in different areas and residential decisions. The literature finds that crime tends to happen close to the offender's residence, but does not clearly establish whether this is because the location ...
Tom Kirchmaier +2 more
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The Commutator of Fuzzy Congruences in Universal Algebras
International Journal of Computational Intelligence Systems, 2021 We develop the commutator theory for fuzzy congruence relations of general universal algebras. In particular, for algebras in modular varieties, we characterize the commutator of fuzzy congruences using the Day’s terms.
Gezahagne Mulat Addis +3 more
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Journal of Pure and Applied Algebra, 2016 We describe a general framework for notions of commutativity based on enriched category theory. We extend Eilenberg and Kelly's tensor product for categories enriched over a symmetric monoidal base to a tensor product for categories enriched over a normal duoidal category; using this, we re-find notions such as the commutativity of a finitary algebraic
Garner, Richard, López Franco, Ignacio
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