Results 11 to 20 of about 123,245 (174)

A refined invariant subspace method and applications to evolution equations [PDF]

open access: yesScience China Mathematics, 2012
The invariant subspace method is refined to present more unity and more diversity of exact solutions to evolution equations. The key idea is to take subspaces of solutions to linear ordinary differential equations as invariant subspaces that evolution equations admit.
A. S. Fokas   +28 more
core   +6 more sources

Speed invariant gait recognition-The enhanced mutual subspace method.

open access: yesPLoS ONE, 2021
This paper introduces an enhanced MSM (Mutual Subspace Method) methodology for gait recognition, to provide robustness to variations in walking speed.
Yumi Iwashita   +3 more
doaj   +5 more sources

Combined invariant subspace & frequency-domain subspace method for identification of discrete-time MIMO linear systems

open access: yesSystems & Control Letters, 2023
Recently, a novel system identification method based on invariant subspace theory is introduced, aiming to address the identification problem of continuous-time (CT) linear time-invariant (LTI) systems by combining time-domain and frequency-domain methods.
You, Jingze, Huang, Chao, Zhang, Hao
openaire   +4 more sources

Invariant Subspace Method: A Tool for Solving Fractional Partial Differential Equations [PDF]

open access: yesFractional Calculus and Applied Analysis, 2017
In this paper invariant subspace method has been employed for solving linear and non-linear fractional partial differential equations involving Caputo derivative. A variety of illustrative examples are solved to demonstrate the effectiveness and applicability of the method.
Choudhary, Sangita   +1 more
openaire   +4 more sources

A new method for computing the stable invariant subspace of a real Hamiltonian matrix

open access: yesJournal of Computational and Applied Mathematics, 1997
The problem of the numerical computation of the Lagrangian invariant subspaces of a real Hamiltonian matrix with a strongly backward stable algorithm is thoroughly examined. The solution of the Hamiltonian eigenvalue problem is important because of its close relation with the solution of the continuous-time algebraic Riccati equation.
Benner, P. ; https://orcid.org/0000-0003-3362-4103   +2 more
openaire   +4 more sources

Construction of exact solutions for fractional order differential equations by the invariant subspace method

open access: yesComputers & Mathematics with Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gazizov, R. K., Kasatkin, A. A.
openaire   +3 more sources

Optimizing option pricing: Exact and approximate solutions for the time-fractional Ivancevic model

open access: yesAlexandria Engineering Journal, 2023
This research investigates the time fractional Ivancevic option pricing model and presents two distinct solution methods: the invariant subspace method for obtaining exact solutions and the residual power series method for generating approximate ...
Khalid K. Ali, M.A. Maaty, M. Maneea
doaj   +1 more source

Approximate invariant subspaces and quasi-newton optimization methods [PDF]

open access: yesOptimization Methods and Software, 2010
New approximate secant equations are shown to result from the knowledge of (problem dependent) invariant subspace information, which in turn suggests improvements in quasi-Newton methods for unconstrained minimization. A new limited-memory Broyden-Fletcher-Goldfarb-Shanno using approximate secant equations is then derived and its encouraging behaviour ...
Gratton, Serge   +1 more
openaire   +2 more sources

The invariant subspace method for solving nonlinear fractional partial differential equations with generalized fractional derivatives

open access: yesAdvances in Difference Equations, 2020
In this paper, we show that the invariant subspace method can be successfully utilized to get exact solutions for nonlinear fractional partial differential equations with generalized fractional derivatives. Using the invariant subspace method, some exact
Mohamed S. Abdel Latif   +2 more
doaj   +1 more source

Continuation of Invariant Subspaces via the Recursive Projection Method [PDF]

open access: yesApplications of Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Janovský, V., Liberda, O.
openaire   +2 more sources

Home - About - Disclaimer - Privacy