Results 71 to 80 of about 118,963 (173)
High order three-term recursions, Riemann-Hilbert minors and Nikishin systems on star-like sets
, 2012 We study monic polynomials $Q_n(x)$ generated by a high order three-term recursion $xQ_n(x)=Q_{n+1}(x)+a_{n-p} Q_{n-p}(x)$ with arbitrary $p\geq 1$ and $a_n>0$ for all $n$. The recursion is encoded by a two-diagonal Hessenberg operator $H$.
Delvaux, Steven, García, Abey López
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Scattering systems with several evolutions and formal reproducing kernel Hilbert spaces [PDF]
, 2013 A Schur-class function in $d$ variables is defined to be an analytic contractive-operator valued function on the unit polydisk. Such a function is said to be in the Schur--Agler class if it is contractive when evaluated on any commutative $d$-tuple of ...
Ball, Joseph A. +3 more
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Feature Extraction of Weak Fault for Rolling Bearing based on CYCBD and Envelope Spectrum
Jixie chuandong, 2020 To solve the problem that it is difficult to extract the weak fault features of rolling bearing effectively under the interference of strong background noise，a method of extracting the weak fault features based on the combination of maximum second-order ...
Zhao Xiaotao, Sun Huer, Yao Wei
doaj
Mathematics, 2019 We consider the split feasibility problem in Hilbert spaces when the hard constraint is common solutions of zeros of the sum of monotone operators and fixed point sets of a finite family of nonexpansive mappings, while the soft constraint is the inverse ...
Suthep Suantai +2 more
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Maximal $L^2$ regularity for Dirichlet problems in Hilbert spaces
, 2012 We consider the Dirichlet problem $\lambda U - {\mathcal{L}}U= F$ in \mathcal{O}, U=0 on $\partial \mathcal{O}$. Here $F\in L^2(\mathcal{O}, \mu)$ where $\mu$ is a nondegenerate centered Gaussian measure in a Hilbert space $X$, $\mathcal{L}$ is an ...
Da Prato, Giuseppe, Lunardi, Alessandra
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Strong convergence and bounded perturbation resilience of a modified proximal gradient algorithm
Journal of Inequalities and Applications, 2018 The proximal gradient algorithm is an appealing approach in finding solutions of non-smooth composite optimization problems, which may only has weak convergence in the infinite-dimensional setting. In this paper, we introduce a modified proximal gradient
Yanni Guo, Wei Cui
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Inertial CQ Algorithm With Correction Terms for Split Feasibility Problems With Multiple Output Sets
Discrete Dynamics in Nature and SocietyWe propose a new CQ algorithm which combines the inertial technique and correction terms for solving the split feasibility problem with multiple output sets in Hilbert spaces. Under suitable conditions, we prove the weak convergence.
Yang Liu, Yazheng Dang, Kang Liu
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Journal of Inequalities and Applications, 2018 In this paper, we present two iterative algorithms for approximating a solution of the split feasibility problem on zeros of a sum of monotone operators and fixed points of a finite family of nonexpansive mappings.
Narin Petrot +2 more
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Abstract and Applied Analysis, 2014 We first introduce and analyze one multistep iterative algorithm by hybrid shrinking projection method for finding a solution of the system of generalized equilibria with constraints of several problems: the generalized mixed equilibrium problem ...
Lu-Chuan Ceng +3 more
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Isometric Dilations of Representations of Product Systems via Commutants
, 2006 We construct a weak dilation of a not necessarily unital CP-semigroup to an E-semigroup acting on the adjointable operators of a Hilbert module with a unit vector.
Michael Skeide, Via Commutants
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