Results 41 to 50 of about 382,992 (165)

On acceleration of Krylov-subspace-based Newton and Arnoldi iterations for incompressible CFD: replacing time steppers and generation of initial guess

, 2018
We propose two techniques aimed at improving the convergence rate of steady state and eigenvalue solvers preconditioned by the inverse Stokes operator and realized via time-stepping.
AY Gelfgat, AY Gelfgat, AY Gelfgat, B-F Wang, C Beaume, C Beaume, DC Sorensen, EY Tau, G Labrosse, H Vitoshkin, H Vorst van der, HA Dijkstra, JA Scott, K Borońska, K Borońska, L Soucasse, Laurette S. Tuckerman, LG Slejipen, LS Tuckerman, MP Juniper, RJA Janssen, S Acharya, S Xin, S-L Zhang, V Theofilis, WS Edwards, Y Feldman   +26 more
core   +1 more source

An Efficient Limited Memory Multi-Step Quasi-Newton Method

Mathematics
This paper is dedicated to the development of a novel class of quasi-Newton techniques tailored to address computational challenges posed by memory constraints. Such methodologies are commonly referred to as “limited” memory methods.
Issam A. R. Moghrabi, Basim A. Hassan
doaj   +1 more source

Application of parallel algorithms for numerical simulation of quasi-one dimensional blood flow

Труды Института системного программирования РАН, 2018
The main goal of modern hemodynamic simulation is the prediction of blood pressure in the arteries, as well as the study of the various factors complex effect on the cardiovascular system characteristics.
A. N. Avdeeva, V. V. Puzikova
doaj   +1 more source

A full-Newton step interior-point algorithm for symmetric cone convex quadratic optimization

Journal of Industrial & Management Optimization, 2011
In this paper, we present a full-Newton step primal-dual interior-point algorithm for solving symmetric cone convex quadratic optimization problem, where the objective function is a convex quadratic function and the feasible set is the intersection of an affine subspace and a symmetric cone lies in Euclidean Jordan algebra.
Yanqin Bai, Lipu Zhang
openaire   +1 more source

A full-Newton step infeasible interior point algorithm and its parameters analysis

Journal of Industrial and Management Optimization
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Lipu, Xu, Yinghong
openaire   +1 more source

Stochastic B-series analysis of iterated Taylor methods

, 2010
For stochastic implicit Taylor methods that use an iterative scheme to compute their numerical solution, stochastic B--series and corresponding growth functions are constructed.
A. Rößler, Anne Kværnø, D.J. Higham, E. Hairer, E. Hairer, J. Butcher, K. Burrage, K. Burrage, K. Burrage, K. Debrabant, K. Debrabant, K. Debrabant, K.R. Jackson, K.R. Jackson, Kristian Debrabant, P.E. Kloeden, R. Barrio, T. Tian   +17 more
core   +1 more source

A Fast Algorithm for Sparse Controller Design [PDF]

, 2013
We consider the task of designing sparse control laws for large-scale systems by directly minimizing an infinite horizon quadratic cost with an $\ell_1$ penalty on the feedback controller gains.
Kolter, J. Zico, Wytock, Matt
core  

Hybrid Deterministic-Stochastic Methods for Data Fitting

, 2011
Many structured data-fitting applications require the solution of an optimization problem involving a sum over a potentially large number of measurements.
Kumar S., Mark Schmidt, Michael P. Friedlander, Nedic A., Sang E., Vishwanathan S. V. N.   +5 more
core   +4 more sources

Analysis of axisymmetric bore-type foundation in respect of plastic deformation/Ašiai simetrinio gręžininio pamato analizė įvertinant plastines deformacijas

Journal of Civil Engineering and Management, 1997
In order to design efficient foundations, it is necessary to know exact behaviour of them and surrounding soil under the load. At present various numerical methods [1–11] are used to determine such response.
Gintaras Bukotas, Rimantas Kačianauskas
doaj   +1 more source

Collision of an Obstacle by an Elastic Bar in a Gravity Field: Solution with Discontinuous Velocity and Space-Time Primal-Dual Active Set Algorithm

Algorithms
A class of one-dimensional dynamic impact models is investigated with respect to non-smooth velocities using variational inequalities and space-time finite element approximation.
Victor A. Kovtunenko
doaj   +1 more source