Results 101 to 110 of about 3,245 (221)
Characterizations and representations of the group inverse involving idempotents [PDF]
, 2011 This paper is to present some results on the group invertibility of products and differences of idempotents. In addition, some formulae for the group inverse of sums, differences and products of idempotents are established by using some given ...
Deng, Chun Yuan, Chun Yuan Deng
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A generalization of Gelfand-Mazur theorem
International Journal of Mathematics and Mathematical Sciences, 1993 In this paper, we show that if A is a unital semisimple complex Banach algebra with only the trivial idempotents and if σA(x) is countable for each x∈Fr(G(A)), then A≅C, this generalizes the Gelfand-Mazur theorem.
Sung Guen Kim
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Unbounded symmetrizable idempotents [PDF]
, 2012 The relationship between closed unbounded idempotents and dense decompositions of a Hilbert space is explored by extending the notion of compatibility between closed subspaces and positive bounded ...
Gonzalez, M. Celeste +4 more
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A majorization relation for a certain class of *-quivers with an orthogonality condition [PDF]
Opuscula Mathematica, 2004 In [Kruglyak S. A., Samoĭlenko Yu. S.: On structure theorems for a family of idempotents. Ukrainskii Matematicheskii Zhurnal 50 (4), (1998) (Russian), Kruglyak S. A., Samoĭlenko Yu.
O. V. Bagro, S. A. Kruglyak
doaj
, 2022 Continuing the study of interactions between radical theory and corners, subrings of the form eAe, where e is an idempotent of a ring A, we examine radicals characterized by the presence or absence of idempotents of various types, relative versions of ...
Barry Gardner (14737198) +1 more
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Skew Constacyclic Codes over a Non-Chain Ring. [PDF]
Entropy (Basel), 2023 Köroğlu ME, Sarı M.
europepmc +1 more source
C∗-algebras without idempotents [PDF]
, 1979 The simplest statement of the main results are these: Let π be a free group on 2 generators. Let Cπ be the complex ring and L1π the ring extension to L1 sums. Then L1π contains no idempotents. Furthermore, if α ϵ Cπ, β ϵ L1π are nonzero, then αβ ≠ 0. The
Joel M Cohen, Cohen, Joel M
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On Optimal and Quantum Code Construction from Cyclic Codes over FqPQ with Applications. [PDF]
Entropy (Basel), 2023 Ali S +5 more
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The decomposition of idempotents associated with inflators [PDF]
, 1987 In a recent paper, Friedland, Hershkowitz, and Schneider introduced a new matrix product called the inflation product and a new class of matrices called inflators.
Stuart, Jeffrey L.
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On Constructing Orthogonal Idempotents
Rocky Mountain Journal of Mathematics, 2007 Let \(A\) be a commutative semisimple algebra over an algebraically closed field. Let \(e_1,\dots,e_{n-1}\), where \(3\leq n\leq\dim A\), be nontrivial orthogonal idempotents in \(A\) such that \(e_1,\dots,e_{n-2}\) are minimal. It is shown that then there exist nontrivial orthogonal idempotents \(q_1,\dots,q_n\) with \(q_1,\dots,q_{n-1}\) minimal.
openaire +3 more sources