Results 41 to 50 of about 2,258,481 (223)

The full integration of black hole solutions to symmetric supergravity theories [PDF]

, 2009
We prove that all stationary and spherical symmetric black hole solutions to theories with symmetric target spaces are integrable and we provide an explicit integration method. This exact integration is based on the description of black hole solutions as
Andrianopoli, Andrianopoli, Andrianopoli, Bellucci, Bellucci, Bergshoeff, Bertolini, Bossard, Bossard, Breitenlohner, Ceresole, Clement, Clement, Clement, Ferrara, Fré, Fré, Fré, Fré, Fré, Fré, Gaiotto, Gal'tsov, Gimon, Gunaydin, J. Rosseel, Kallosh, Kodama, Kodama, Kodama, Lopes Cardoso, M. Trigiante, Miller, Mohaupt, Ortin, Perz, Pioline, T. Van Riet, W. Chemissany   +38 more
core   +2 more sources

Efficient and robust constitutive integrators for single-crystal plasticity modeling [PDF]

, 2005
Simulations of the dynamic deformations of metal samples require elastic-plastic constitutive updates of the material behavior to be performed over a small time step between updates, as dictated by the Courant condition.
Cuitino, A. M., Kuchnicki, S. N., Radovitzky, R. A.   +2 more
core   +2 more sources

One-Parameter Controlled Non-Dissipative Unconditionally Stable Explicit Structure-Dependent Integration Methods with No Overshoot

Applied Sciences, 2021
Although many families of integration methods have been successfully developed with desired numerical properties, such as second order accuracy, unconditional stability and numerical dissipation, they are generally implicit methods.
Veerarajan Selvakumar, Shuenn-Yih Chang
doaj   +1 more source

New Analytical Results and Comparison of 14 Numerical Schemes for the Diffusion Equation with Space-Dependent Diffusion Coefficient

Mathematics, 2022
We examine the one-dimensional transient diffusion equation with a space-dependent diffusion coefficient. Such equations can be derived from the Fokker–Planck equation and are essential for understanding the diffusion mechanisms, e.g., in carbon ...
Mahmoud Saleh, Endre Kovács, Imre Ferenc Barna, László Mátyás   +3 more
doaj   +1 more source

Probabilistic time integration for semi-explicit PDAEs

Statistics and Computing
Abstract This paper deals with the application of probabilistic time integration methods to semi-explicit partial differential–algebraic equations of parabolic type and its semi-discrete counterparts, namely semi-explicit differential–algebraic equations of index 2.
Robert Altmann, Afsaneh Moradi
openaire   +3 more sources

Consistency and Convergence Properties of 20 Recent and Old Numerical Schemes for the Diffusion Equation

Algorithms, 2022
We collected 20 explicit and stable numerical algorithms for the one-dimensional transient diffusion equation and analytically examined their consistency and convergence properties.
Ádám Nagy, János Majár, Endre Kovács   +2 more
doaj   +1 more source

Friedmann's Equations in All Dimensions and Chebyshev's Theorem

, 2014
This short but systematic work demonstrates a link between Chebyshev's theorem and the explicit integration in cosmological time $t$ and conformal time $\eta$ of the Friedmann equations in all dimensions and with an arbitrary cosmological constant ...
Chen, Shouxin, Gibbons, Gary W., Li, Yijun, Yang, Yisong   +3 more
core   +1 more source

Asymptotic-preserving projective integration schemes for kinetic equations in the diffusion limit [PDF]

, 2010
We investigate a projective integration scheme for a kinetic equation in the limit of vanishing mean free path, in which the kinetic description approaches a diffusion phenomenon.
Coulombel J.-F., E W., Giovanni Samaey, Pauline Lafitte   +3 more
core   +4 more sources

Distorted time window for sensorimotor integration and preserved time window for sense of agency in patients with post-stroke limb apraxia

Frontiers in Human Neuroscience
Limb apraxia is a cognitive-motor disorder typically resulting from left hemisphere stroke, characterized by an inability to perform skilled limb movements despite intact motor and sensory functions. Previous studies suggest that individuals with apraxia
Satoshi Nobusako, Satoshi Nobusako, Rintaro Ishibashi, Takaki Maeda, Sotaro Shimada, Shu Morioka, Shu Morioka   +6 more
doaj   +1 more source

An explicit marching-on-in-time scheme for solving the time domain Kirchhoff integral equation [PDF]

The Journal of the Acoustical Society of America, 2019
A fully explicit marching-on-in-time (MOT) scheme for solving the time domain Kirchhoff (surface) integral equation to analyze transient acoustic scattering from rigid objects is presented. A higher-order Nyström method and a PE(CE)m-type ordinary differential equation integrator are used for spatial discretization and time marching, respectively.
Chen, Rui, Sayed, Sadeed B, Al-Harthi, Noha A., Keyes, David E., Bagci, Hakan   +4 more
openaire   +3 more sources