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The generalized projection methods in countably normed spaces

open access: yesJournal of Inequalities and Applications, 2021
Let E be a Banach space with dual space E ∗ $E^{*}$ , and let K be a nonempty, closed, and convex subset of E. We generalize the concept of generalized projection operator “ Π K : E → K $\Pi _{K}: E \rightarrow K$ ” from uniformly convex uniformly smooth
Sarah Tawfeek   +2 more
doaj   +1 more source

Randomized Projection Learning Method for Dynamic Mode Decomposition

open access: yesMathematics, 2021
A data-driven analysis method known as dynamic mode decomposition (DMD) approximates the linear Koopman operator on a projected space. In the spirit of Johnson–Lindenstrauss lemma, we will use a random projection to estimate the DMD modes in a reduced ...
Sudam Surasinghe, Erik M. Bollt
doaj   +1 more source

Duals of Some Constructed $*$-Frames by Equivalent $*$-Frames [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
Hilbert frames theory have been extended to frames in Hilbert $C^*$-modules. The paper introduces equivalent $*$-frames and presents ordinary duals of a constructed $*$-frame by an adjointable and invertible operator.
Azadeh Alijani
doaj   +1 more source

An approximation of solutions of variational inequalities

open access: yesFixed Point Theory and Applications, 2005
We use a Mann-type iteration scheme and the metric projection operator (the nearest-point projection operator) to approximate the solutions of variational inequalities in uniformly convex and uniformly smooth Banach spaces.
B. E. Rhoades, Jinlu Li
doaj   +2 more sources

Inertial projection methods for solving general quasi-variational inequalities

open access: yesAIMS Mathematics, 2021
In this paper, we consider a new class of quasi-variational inequalities, which is called the general quasi-variational inequality. Using the projection operator technique, we establish the equivalence between the general quasi-variational inequalities ...
Saudia Jabeen   +3 more
doaj   +1 more source

Projecting onto rectangular matrices with prescribed row and column sums

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2021
In 1990, Romero presented a beautiful formula for the projection onto the set of rectangular matrices with prescribed row and column sums. Variants of Romero’s formula were rediscovered by Khoury and by Glunt, Hayden, and Reams for bistochastic (square ...
Heinz H. Bauschke   +2 more
doaj   +1 more source

Design of a High-Order Kalman Filter for State and Measurement of A Class of Nonlinear Systems Based on Kronecker Product Augmented Dimension

open access: yesSensors, 2023
A high-order Kalman filter for full-dimensional variables is proposed for a class of dynamic systems whose state model and measurement model are both nonlinear.
Deyan Peng, Chenglin Wen, Meilei Lv
doaj   +1 more source

Iteratively Successive Projection: A Novel Continuous Approach for the Task-Based Control of Redundant Robots

open access: yesIEEE Access, 2019
The task-based control approach with an activation task mechanism endows a robot the possibility to act complex behaviors in an unstructured environment.
Pei Jiang   +3 more
doaj   +1 more source

A Rapidly Direct Algorithm of Explicit Fréchet Derivatives for MCSEM in a 3-D TI Formation Using Finite Volume of Coupled Potentials

open access: yesIEEE Access, 2023
This paper presents a rapidly direct algorithm (RDA) to calculate explicit Fréchet derivatives (EFD) for marine controlled-source electromagnetic measurement (MCSEM) in a three-dimensional (1-D) transversely isotropic (TI) formation.
Bo Chen   +4 more
doaj   +1 more source

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