Results 141 to 150 of about 382 (168)
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A Commutativity Theorem for Algebras
The American Mathematical Monthly, 1975(1975). A Commutativity Theorem for Algebras. The American Mathematical Monthly: Vol. 82, No. 4, pp. 377-379.
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Möbius' theorem and commutativity
Journal of Geometry, 1997Let \(A_0A_1A_2A_3\) and \(B_0B_1B_2B_3\) be any two nondegenerate tetrahedra in the three-dimensional projective space \(P_3(F)\) over a field \(F\), which are situated in such a way that \(B_i\in\alpha_i\), \(B_i\not\in\alpha_j\) for \(i\neq j\) \((i,j= 0,1,2,3)\) and \(A_i\in\beta_i\) for \(i= 0,1,2\), where \(\alpha_i(\beta_i)\) is the plane ...
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1985
In order to clarify this Chapter, we will be concerned first with an ultraweakly closed space A with condition II, of the form A = Un≥ M Δn × Δn (where Δ ≥ Id is a self-adjoint operator affiliated to a given von Neumann algebra M). This will enable us to deal more simply with an ultraweakly closed space A with condition II and cofinal abelian sequence.
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In order to clarify this Chapter, we will be concerned first with an ultraweakly closed space A with condition II, of the form A = Un≥ M Δn × Δn (where Δ ≥ Id is a self-adjoint operator affiliated to a given von Neumann algebra M). This will enable us to deal more simply with an ultraweakly closed space A with condition II and cofinal abelian sequence.
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A commutativity theorem for rings
Mathematical Journal of Okayama University, 1984The aim of this short paper is to prove the following theorem: ''Let m,n be fixed non-negative integers. Suppose that R satisfies the polynomial identity: \(x^ n[x,y]-[x,y^ m]=0\), R being a ring. (i) If R is left s- unital (that is for every \(x\in R\), \(x\in Rx)\), then R is commutative except the case \(m=1\) and \(n=0\).
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A Theorem on Commutative Matrices
Journal of the London Mathematical Society, 1949openaire +2 more sources
Commutativity theorems in rings with involution
Communications in Algebra, 2017Abdellah Mamouni, L Oukhtite
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Some Theorems on Commutative Matrices
Journal of the London Mathematical Society, 1951Drazin, M. P. +2 more
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Two elementary commutativity theorems for rings
Acta Mathematica Hungarica, 1977Abdullah Harmanci
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Commutativity Theorems for Rings with Constraints Involving a Commutative Subset
Resultate Der Mathematik, 2013Hisao Tominaga +2 more
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