Results 1 to 10 of about 133,376 (182)
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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10-commutator and 13-commutator [PDF]
arXiv, 2006 Skew-symmetric sum of $N!$ compositions of $N$ vector fields in all possible order is called $N$-commutator. We construct 10-commutator and 13-commutator on a space of vector fields $Vect(3)$ and 10-commutator on a space of divergenceless vector fields $Vect_0(3).$
arxiv +3 more sources
Commutators and Anti-Commutators of Idempotents in Rings
, 2018 We show that a ring $\,R\,$ has two idempotents $\,e,e'\,$ with an invertible commutator $\,ee'-e'e\,$ if and only if $\,R \cong {\mathbb M}_2(S)\,$ for a ring $\,S\,$ in which $\,1\,$ is a sum of two units. In this case, the "anti-commutator" $\,ee'+e'e\
Khurana, Dinesh, Lam, T. Y.
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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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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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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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Commutators and commutator subgroups of the Riordan group [PDF]
Advances in Mathematics, 2023 We calculate the derived series of the Riordan group. To do that, we study a nested sequence of its subgroups, herein denoted by $\mathcal G_k$. By means of this sequence, we first obtain the n-th commutator subgroup of the Associated subgroup. This fact allows us to get some related results about certain groups of formal power series and to complete ...
Luzón, Ana +2 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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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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Wear Behavior of Graphic Brush for Motors in the High Humidity of Tropical Climate with Current
Tribology in Industry, 2022 The motor with commutator brushes pair is widely used in industrial equipment. During operation, the brush and commutator of the motor will wear out, especially in humid tropical monsoon conditions.
Van Hung Pham +2 more
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