Results 21 to 30 of about 3,271,968 (288)
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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Mixing of the upper triangular matrix walk [PDF]
Probability Theory and Related Fields, 2012 11 ...
Peres, Yuval, Sly, Allan
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Zero watermarking scheme for privacy protection in e-Health care
Automatika, 2023 E-health care is an emerging field where health services and information are delivered and offered over the Internet. So the health information of the patients communicated over the Internet has to protect the privacy of the patients.
Ayesha Shaik, V. Masilamani
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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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Solving Grid Equations Using the Alternating-triangular Method on a Graphics Accelerator
Вестник Южно-Уральского государственного университета: Серия Вычислительная математика и информатика, 2023 The paper describes a parallel-pipeline implementation of solving grid equations using the modified alternating-triangular iterative method (MATM), obtained by numerically solving the equations of mathematical physics. The greatest computational costs at
Alexander I. Sukhinov +5 more
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Jordan isomorphisms of upper triangular matrix rings
Linear Algebra and its Applications, 2007 A bijective additive map of rings \(g\colon A\to B\) is a Jordan isomorphism if for all \(x,y\in A\), \(g(xy+yx)=g(x)g(y)+g(y)g(x)\). The authors generalize results in the literature that show when such a map is a ring isomorphism or anti-isomorphism. They consider a Jordan isomorphism \(g\colon S\to B\) for \(S\) the ring of upper triangular \(n\times
Liu, Cheng-Kai, Tsai, Wan-Yu
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Jordan homomorphisms of upper triangular matrix rings
Linear Algebra and its Applications, 2013 Let \(T_n(R)\) denote the ring of all upper triangular matrices over a ring \(R\). The main result of the paper states that a Jordan homomorphism \(\varphi\) from \(T_n(R)\) onto \(T_{n'}(R)\), where \(n,n'\geq 2\), is either a homomorphism or an antihomomorphism provided that \(R\) is a unital ring without nontrivial idempotents and \(\varphi(R\cdot 1)
Wang, Yao, Wang, Yu
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Graded isomorphisms on upper block triangular matrix algebras [PDF]
Linear Algebra and its Applications, 2018 We describe the graded isomorphisms of rings of endomorphisms of graded flags over graded division algebras. As a consequence describe the isomorphism classes of upper block triangular matrix algebras (over an algebraically closed field of characteristic zero) graded by a finite abelian group.
Alex Ramos Borges +2 more
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Upper triangular matrix walk: Cutoff for finitely many columns [PDF]
Random Structures & Algorithms, 2019 We consider random walk on the space of all upper triangular matrices with entries in which forms an important example of a nilpotent group. Peres and Sly proved tight bounds on the mixing time of this walk up to constants. It is well known that the column projection of this chain is the one dimensional East process.
Shirshendu Ganguly, Fabio Martinelli
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International Journal of Distributed Sensor Networks, 2020 In this article, principal component analysis method, which is applied to image compression and feature extraction, is introduced into the dimension reduction of input characteristic variable of support vector regression, and a method of joint estimation
Lanmei Wang +3 more
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