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101.
A.G. Zavadskij 《Linear algebra and its applications》2008,428(1):393-399
Let F⊂G=F(u) be a central quadratic skew field extension (such that the generator u is central in G) and 04314-si2.gif"> a natural (G,G)-bimodule. We deal with the matrix problem on finding a canonical form for rectangular matrices over W with help of left elementary transformations of their rows and right elementary transformations of columns over G. We solve this problem reducing it in the separable (resp. inseparable) case to the semilinear (resp. pseudolinear) pencil problem. 相似文献
102.
In this paper we investigate linear three-term recurrence formulae with sequences of integers (T(n))n?0 and (U(n))n?0, which are ultimately periodic modulo m, e.g.
103.
The general mixed linear model can be written as 047259X0800016X-si1.gif">. In this paper, we mainly deal with two problems. Firstly, the problem of predicting a general linear combination of fixed effects and realized values of random effects in a general mixed linear model is considered and an explicit representation of the best linear unbiased predictor (BLUP) is derived. In addition, we apply the resulting conclusion to several special models and offer an alternative to characterization of BLUP. Secondly, we recall the notion of linear sufficiency and consider it as regards the BLUP problem and characterize it in several different ways. Further, we study the concepts of linear sufficiency, linear minimal sufficiency and linear completeness, and give relations among them. Finally, four concluding remarks are given. 相似文献
104.
Mannheim partner curves in 3-space 总被引:1,自引:0,他引:1
In this paper, we study Mannheim partner curves in three dimensional space. We obtain the necessary and sufficient conditions
for the Mannheim partner curves in Euclidean space and Minkowski space , respectively. Some examples are also given.
Supported by NSFC, No.10371013; Joint Research of NSFC and KOSEF, NEU 相似文献
105.
Based on relaxed cocoercive monotonicity, a new generalized class of nonlinear variational inequality problems is presented. Our results improve and extend the recent ones announced by [H. Y. Huang, M. A. Noor, An explicit projection method for a system of nonlinear variational inequalities with different (γ,r)-cocoercive mappings, Appl. Math. Comput. 190 (2007) 356–361; S. S. Chang, H. W. Joseph Lee, C. K. Chan, Generalized system for relaxed cocoercive variational inequalities in Hilbert spaces, Appl. Math. Lett. 20 (2007) 329–334; R. U. Verma, Generalized system for relaxed cocoercive variational inequalities and its projection methods, J. Optim. Theory Appl. 121 (2004) 203–210; M. A. Noor, General variational inequalities, Appl. Math. Lett. 1 (1988) 119–121] and many others. 相似文献
106.
In this paper, we introduce and study a new class of generalized quasi-variational-like hemivariational inequalities with multi-valued η-pseudomonotone operators in Banach spaces. Some new existence theorems of solutions for this class of generalized quasi-variational-like hemivariational inequalities are proved. The results presented in this paper generalize and extend some known results. 相似文献
107.
Raúl E. Curto Lawrence A. Fialkow H. Michael Möller 《Integral Equations and Operator Theory》2008,60(2):177-200
For a degree 2n real d-dimensional multisequence to have a representing measure μ, it is necessary for the associated moment matrix to be positive semidefinite and for the algebraic variety associated to β, , to satisfy rank card as well as the following consistency condition: if a polynomial vanishes on , then . We prove that for the extremal case , positivity of and consistency are sufficient for the existence of a (unique, rank -atomic) representing measure. We also show that in the preceding result, consistency cannot always be replaced by recursiveness
of .
The first-named author’s research was partially supported by NSF Research Grants DMS-0099357 and DMS-0400741. The second-named
author’s research was partially supported by NSF Research Grant DMS-0201430 and DMS-0457138. 相似文献
108.
Raúl E. Curto Lawrence A. Fialkow H. Michael Möller 《Integral Equations and Operator Theory》2008,61(1):147-148
Due to a technical problem, we accidentally omitted a paragraph from the proof of one of the main results in [1]. In this
Addendum we provide the portion of the proof that did not appear in [1].
This is an addendum to . 相似文献
109.
Wolfgang Hassler 《Journal of Pure and Applied Algebra》2007,208(2):575-589
Let R be an order in a real quadratic number field. We say that R has mixed cancellation, respectively, torsion-free cancellation if
L⊕M≅L⊕N⇒M≅N 相似文献
110.