Results 31 to 40 of about 64,813 (288)

Obtaining Pseudo-inverse Solutions With MINRES

open access: yes, 2023
The celebrated minimum residual method (MINRES), proposed in the seminal paper of Paige and Saunders, has seen great success and widespread use in solving Hermitian (and complex-symmetric) linear systems. Unless the system is consistent, MINRES is not guaranteed to obtain the pseudo-inverse solution.
Liu, Yang, Milzarek, Andre, Roosta, Fred
openaire   +2 more sources

Some Special Elements and Pseudo Inverse Functions in Groupoids

open access: yesMathematics, 2019
In this paper, we consider a theory of elements u of a groupoid ( X , ∗ ) that are associated with certain functions u ^ : X → X , pseudo-inverse functions, which are generalizations of the inverses associated with units of ...
Yong Lin Liu   +2 more
doaj   +1 more source

Internal model control of valve-controlled asymmetric cylinder system based on sectional neural network inverse system

open access: yesThe Journal of Engineering, 2020
In order to improve the control performance of the valve-controlled asymmetric cylinder system with negative overlap, it is proposed that the complex nonlinear system is transformed into a linear system based on the neural network inverse system.
Le Zeng   +3 more
doaj   +1 more source

FFT Interpolation from Nonuniform Samples Lying in a Regular Grid [PDF]

open access: yes, 2014
This paper presents a method to interpolate a periodic band-limited signal from its samples lying at nonuniform positions in a regular grid, which is based on the FFT and has the same complexity order as this last algorithm. This kind of interpolation is
Selva, J.
core   +3 more sources

On Modularity, Indistinguishability and Generalized Metrics: Duality and Aggregation

open access: yesMathematics
In this paper, we prove that, on the one hand, a duality relationship between different types of modular T-transitive relations and the reciprocal modular generalized metrics exists and, on the other hand, that, based on this duality, a construction of ...
Gabriel Jaume-Martin   +3 more
doaj   +1 more source

Computation of the para-pseudoinverse for oversampled filter banks: Forward and backward Greville formulas [PDF]

open access: yes, 2008
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2008 IEEE. Personal use of this material is permitted.
Kot, AC, Li, KH, Ling, C
core   +1 more source

Frames and Pseudo-Inverses

open access: yesJournal of Mathematical Analysis and Applications, 1995
A family \(\{f_i \}_{i\in I}\) in an infinite-dimensional Hilbert space \({\mathcal H}\) is called a Bessel sequence if \(\forall_{f\in {\mathcal H}} \sum_{i\in I} |\langle f,f_i \rangle|^2< \infty\). A Bessel sequence \(\{f_i \}_{i\in I}\) is called a frame if \[ \exists A>0:\;A|f|^2\leq \sum_{i\in I}|\langle f,f_i \rangle|^2, \qquad \forall f\in ...
openaire   +1 more source

Rate maximization in multi-antenna broadcast channels with linear preprocessing [PDF]

open access: yes, 2006
The sum rate capacity of the multi-antenna broadcast channel has recently been computed. However, the search for efficient practical schemes that achieve it is still ongoing. In this paper, we focus on schemes with linear preprocessing of the transmitted
Hassibi, Babak   +2 more
core   +1 more source

Frequency-Constrained QR: Signal and Image Reconstruction

open access: yesRemote Sensing
Because a finite set of measurements is limited in the amount of spectral content it can represent, the reconstruction process from discrete samples is inherently band-limited. In the case of 1D sampling using ideal measurements, the maximum bandwidth of
Harrison Garrett, David G. Long
doaj   +1 more source

Pseudo-Goldstone dark matter in a radiative inverse seesaw scenario

open access: yesJournal of High Energy Physics, 2023
We consider a scale-invariant inverse seesaw model with dynamical breaking of gauge symmetry and lepton number. In some regions of the parameter space, the Majoron — the pseudo-Goldstone of lepton number breaking — is a viable dark matter candidate.
K. Kannike   +3 more
doaj   +1 more source

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