Results 31 to 40 of about 65,242 (175)

Preconditioned Subspace Descent Method for Nonlinear Systems of Equations

open access: yesOpen Computer Science, 2020
Nonlinear least squares iterative solver is considered for real-valued sufficiently smooth functions. The algorithm is based on successive solution of orthogonal projections of the linearized equation on a sequence of appropriately chosen low-dimensional
Kaporin Igor
doaj   +1 more source

Cross-Modal Subspace Clustering via Deep Canonical Correlation Analysis

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2020
For cross-modal subspace clustering, the key point is how to exploit the correlation information between cross-modal data. However, most hierarchical and structural correlation information among cross-modal data cannot be well exploited due to its high-dimensional non-linear property.
Quanxue Gao   +3 more
openaire   +2 more sources

About Projections of Solutions for Fuzzy Differential Equations

open access: yesJournal of Applied Mathematics, 2013
In this paper we propose the concept of fuzzy projections on subspaces of , obtained from Zadeh's extension of canonical projections in , and we study some of the main properties of such projections.
Moiseis S. Cecconello   +3 more
doaj   +1 more source

Canonical analysis of two euclidean subspaces and its applications

open access: yesLinear Algebra and its Applications, 1997
The authors develop a canonical analysis both without constraints and under constraints for subspaces of Euclidean space. They essentially use operators; this functional approach is in particular justified, since canonical analysis of subspaces attains its full interest only when definitions and results are extended to the infinite dimensional case ...
Dauxois, J., Nkiet, G.M.
openaire   +1 more source

Conditional Lie-Bäcklund Symmetries and Reductions of the Nonlinear Diffusion Equations with Source

open access: yesAbstract and Applied Analysis, 2014
Conditional Lie-Bäcklund symmetry approach is used to study the invariant subspace of the nonlinear diffusion equations with source ut=e−qx(epxP(u)uxm)x+Q(x,u), m≠1.
Junquan Song   +3 more
doaj   +1 more source

A Perturbation Bound on the Subspace Estimator from Canonical Projections

open access: yes2022 IEEE International Symposium on Information Theory (ISIT), 2022
To appear in Proc.
Srivastava, Karan   +1 more
openaire   +2 more sources

Blind Identification of FIR Channels in the Presence of Unknown Noise

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Blind channel identification techniques based on second-order statistics (SOS) of the received data have been a topic of active research in recent years. Among the most popular is the subspace method (SS) proposed by Moulines et al. (1995).
Kon Max Wong, Xiaojuan He
doaj   +2 more sources

General spectral function expressions of a 1D correlated model

open access: yes, 2005
We introduce a method that allows the evaluation of general expressions for the spectral functions of the one-dimensional Hubbard model for all values of the on-site electronic repulsion U.
Carmelo, J. M. P., Penc, K.
core   +2 more sources

Asymptotic and Probabilistic Perturbation Analysis of Controllable Subspaces

open access: yesComputation
In this paper, we consider the sensitivity of the controllable subspaces of single-input linear control systems to small perturbations of the system matrices.
Vera Angelova   +2 more
doaj   +1 more source

Localization in Nets of Standard Spaces [PDF]

open access: yes, 2014
Starting from a real standard subspace of a Hilbert space and a representation of the translation group with natural properties, we construct and analyze for each endomorphism of this pair a local, translationally covariant net of standard subspaces, on ...
Lechner, Gandalf, Longo, Roberto
core   +3 more sources

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