Results 261 to 270 of about 390,758 (311)
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Delayed Over-Relaxation for iterative methods
Journal of Computational Physics, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Matteo Antuono, Giuseppina Colicchio
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Relaxation Runge–Kutta Methods for Hamiltonian Problems [PDF]
Journal of Scientific Computing, 2020 The recently-introduced relaxation approach for Runge–Kutta methods can be used to enforce conservation of energy in the integration of Hamiltonian systems. We study the behavior of implicit and explicit relaxation Runge–Kutta methods in this context. We
David I Ketcheson +2 more
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JAMA: The Journal of the American Medical Association, 1973
To the Editor.— We have developed a simple, effective, meditation-like relaxation method that may be taught within a few minutes and is helpful in the management of insomnia, moderate anxiety states, and relief of moderate pain. In essence, the method utilizes self-directed awareness that facilitates development of a pleasantly relaxing and easily ...
A P, French, J P, Tupin
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To the Editor.— We have developed a simple, effective, meditation-like relaxation method that may be taught within a few minutes and is helpful in the management of insomnia, moderate anxiety states, and relief of moderate pain. In essence, the method utilizes self-directed awareness that facilitates development of a pleasantly relaxing and easily ...
A P, French, J P, Tupin
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The Lancet, 1969
Abstract Of 92 psychiatric patients, all but 3 were relaxed within two minutes by a simple method that 58 of them later used successfully to relax themselves. Those who did not relax easily were 3 women who became increasingly anxious on closing their eyes when someone else was present.
N J, Yorkston, H G, Sergeant
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Abstract Of 92 psychiatric patients, all but 3 were relaxed within two minutes by a simple method that 58 of them later used successfully to relax themselves. Those who did not relax easily were 3 women who became increasingly anxious on closing their eyes when someone else was present.
N J, Yorkston, H G, Sergeant
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A Global Method for Relaxation
Archive for Rational Mechanics and Analysis, 1998Abstract: "A new method for the identification of the integral representation of some class of functionals defined on BV([omega];R[superscript d])xA([omega]) (where A([omega]) represents a family of open subsets of [omega]) is presented. Applications are derived, such as the integral representation of the relaxed energy in BV([omega];R[superscript d ...
Bouchitté, Guy +2 more
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On the Multigrid Waveform Relaxation Method
SIAM Journal on Scientific Computing, 1995The authors study the multigrid waveform relaxation method (MGWRM) for solving initial value problems of the form \[ {du \over dt} + L_h u = f, \quad t > 0, \quad u(0) = u_0, \text{ with }L_h \in\mathbb{C}^{n \times n}, \tag{1} \] typically resulting from the spatial discretization of parabolic initial-boundary value problems on some grid with the ...
Shlomo Ta'asan, Hong Zhang 0006
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The Relaxation Method for Linear Inequalities
Canadian Journal of Mathematics, 1954Let A be a closed set of points in the n-dimensional euclidean space En. If p and p1 are points of En such that1.1then p1 is said to be point-wise closer than p to the set A. If p is such that there is no point p1 which is point-wise closer than p to A, then p is called a closest point to the set A.
Motzkin, T. S., Schoenberg, I. J.
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Relaxation methods for image reconstruction
Communications of the ACM, 1978The problem of recovering an image (a function of two variables) from experimentally available integrals of its grayness over thin strips is of great importance in a large number of scientific areas. An important version of the problem in medicine is that of obtaining the exact density distribution within the human body from X-ray projections.
Gabor T. Herman +2 more
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Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1973
Summary A parametric approach towards the classification of relaxation methods is presented. It is emphasised how such a perspective is non-trivial and informative. As a natural consequence, this formal theory of the methodology of linear methods suggests two new current-based transient techniques with two parameters.
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Summary A parametric approach towards the classification of relaxation methods is presented. It is emphasised how such a perspective is non-trivial and informative. As a natural consequence, this formal theory of the methodology of linear methods suggests two new current-based transient techniques with two parameters.
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A relaxed version of Karmarkar's method
Mathematical Programming, 1988This paper develops a relaxed version of Karmarkar's method and discusses relative theoretical problems for a class of interior-point methods. The relaxed algorithm uses inexact projections and has the same polynomial time complexity. At each step one solves inexactly a least-squares problem involving a basis for the null space of the constraint matrix
Donald Goldfarb, Sanjay Mehrotra
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