Results 11 to 20 of about 27,372,603 (325)
ϱ-contraction and 2 × 2 matrix [PDF]
, 1998 In this paper, the following is proved. When |a|⩽1 and |b|⩽1, A = acOb is a g9-contraction if and only if |c|2 + |a − |2 ⩽ infζ∈D{ρ + (1 −ρ)aζ}{ρ + (1 − ρ)bζ} − aζ|ζ|2ρζ2 where D is the open unit disc.
T. Nakazi, K. Okubo
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Matrix Gegenbauer Polynomials: the $2\times 2$ Fundamental Cases [PDF]
, 2015 In this paper, we exhibit explicitly a sequence of $2\times2$ matrix valued orthogonal polynomials with respect to a weight $W_{p,n}$, for any pair of real numbers $p$ and $n$ such that ...
Pacharoni, Inés, Zurrián, Ignacio
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The 2+2-Signature and the 1+1-Matrix-Brane [PDF]
, 2006 We discuss different aspects of the 2+2-signature from the point of view of the quatl theory. In particular, we compare two alternative approaches to such a spacetime signature, namely the 1+1-matrix-brane and the 2+2-target spacetime of a string.
J. A. NIETO, Nieto J. A.
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Classical r-matrix of the su(2|2) SYM spin-chain [PDF]
, 2007 In this note we straightforwardly derive and make use of the quantum R-matrix for the su(2|2) SYM spin-chain in the manifest su(1|2)-invariant formulation, which solves the standard quantum Yang-Baxter equation, in order to obtain the correspondent ...
A. A. Belavin +11 more
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Biology Open, 2017 Robust reproductive engineering techniques are required for the efficient and rapid production of genetically modified mice. We have reported the efficient production of genome-edited mice using reproductive engineering techniques, such as ultra ...
Yoshiko Nakagawa +6 more
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Singular matrices that are products of two idempotents or products of two nilpotents
Special Matrices, 2021 Over commutative domains we characterize the singular 2 × 2 matrices which are products of two idempotents or products of two nilpotents. The relevant casees are the matrices with zero second row and the singular matrices with only nonzero entries.
Călugăreanu Grigore
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The image of polynomials in one variable on 2×2 upper triangular matrix algebras
AIMS Mathematics, 2022 In the present paper, we give a description of the image of polynomials in one variable on 2×2 upper triangular matrix algebras over an algebraically closed field.
Lan Lu +3 more
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Logging evaluation methods of low-organic matter fault-block shale oil in the Subei Basin and their application [PDF]
Youqicang pingjia yu kaifaThe Subei Basin is characterized by a complex structure and well-developed faults. The shale in the second member of the Funing Formation has relatively low organic matter abundance, with a total organic carbon (TOC) generally below 1.5%.
QIAN Shiyou, YANG Zhiqiang, XU Chen
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On idempotent stable range 1 matrices
Special Matrices, 2022 We characterize the idempotent stable range 1, 2 × 2 matrices over commutative rings and in particular the integral matrices with this property. Several special cases and examples complete the subject.
Călugăreanu Grigore, Pop Horia F.
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Symmetric 2×2 matrix functions with order preserving property [PDF]
Opuscula MathematicaIt is known that the discrete matrix Riccati equation has the order preserving property under some assumptions. In this paper we formulate and prove the converse statement for the case when the dimensions of the matrices are \(2 \times 2\) and the order ...
Viera Štoudková Růžičková
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