Results 31 to 40 of about 155,178 (312)
A CHARACTERIZATION OF BAER-IDEALS [PDF]
Journal of Algebraic Systems, 2014 An ideal I of a ring R is called right Baer-ideal if there exists an idempotent e 2 R such that r(I) = eR. We know that R is quasi-Baer if every ideal of R is a right Baer-ideal, R is n-generalized right quasi-Baer if for each I E R the ideal In is right
Ali Taherifar
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ψ3 as an Upper Triangular Matrix
K-Theory, 2005 Comment: 26 ...
Jon Barker, Victor Snaith
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Unitary Triangularization of a Nonsymmetric Matrix [PDF]
Journal of the ACM, 1958 A method for the inversion of a nonsymmetric matrix, due to J. W. Givens, has been in use at Oak Ridge National Laboratory and has proved to be highly stable numerically but to require a rather large number of arithmetic operations, including a total of $n(n-1)/2$ square roots.
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The group inverse of a triangular matrix
Linear Algebra and its Applications, 1996 Block conditions are given for the group inverse of a triangular matrix over a field to exist. These involve the zero-nonzero Schur complement. Applications are given to idempotent matrices.
Xuzhou Chen, Robert E. Hartwig
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The Algebra of $S^2$-Upper Triangular Matrices [PDF]
arXiv, 2023 Based on work presented in [4], we define $S^2$-Upper Triangular Matrices and $S^2$-Lower Triangular Matrices, two special types of $d\times d(2d-1)$ matrices generalizing Upper and Lower Triangular Matrices, respectively. Then, we show that the property that the determinant of an Upper Triangular Matrix is the product of its diagonal entries is ...
arxiv
Nonlinear maps preserving Lie products on triangular algebras
Special Matrices, 2016 In this paper we prove that every bijection preserving Lie products from a triangular algebra onto a normal triangular algebra is additive modulo centre.
Yu Weiyan
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Hochschild Cohomology of Triangular Matrix Algebras
Journal of Algebra, 2000 AbstractWe study the Hochschild cohomology of triangular matrix rings B=R0AMRA , where A and R are finite dimensional algebras over an algebraically closed field K and M is an A-R-bimodule. We prove the existence of two long exact sequences of K-vector spaces relating the Hochschild cohomology of A, R, and B.
Michelena, Sandra, Platzeck, Maria Ines
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Seesaw and leptogenesis: a triangular ansatz [PDF]
Mod.Phys.Lett.A26:1375-1379,2011, 2010 A triangular ansatz for the seesaw mechanism and baryogenesis via leptogenesis is explored. In a basis where both the charged lepton and the Majorana mass matrix are diagonal, the Dirac mass matrix can generally be written as the product of a unitary times a triangular matrix. We assume the unitary matrix to be the identity and then an upper triangular
arxiv +1 more source
Representation dimensions of triangular matrix algebras
Linear Algebra and its Applications, 2013 19 ...
Shunhua Zhang, Hongbo Yin
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Functional identities on upper triangular matrix rings
Open Mathematics, 2020 Let R be a subset of a unital ring Q such that 0 ∈ R. Let us fix an element t ∈ Q. If R is a (t; d)-free subset of Q, then Tn(R) is a (t′; d)-free subset of Tn(Q), where t′ ∈ Tn(Q), tll′$\begin{array}{} t_{ll}' \end{array} $ = t, l = 1, 2, …, n, for any ...
Yuan He, Chen Liangyun
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