Institute of Computer Science

Institute of Computer Science 1,655 records found  beginprevious1646 - 1655  jump to record: Search took 0.00 seconds. 
New Limited-Memory Variable Metric Methods for Unconstrained Optimization
Vlček, Jan ; Lukšan, Ladislav
A new family of numerically efficient variable metric or quasi-Newton methods for unconstrained optimizaion is adapted for large-scale optimization. Global convergence of the method can be established for convex sufficiently smooth functions. Some encouraging numerical experience is reported. We refer to our report V-876 for proof and details.
Discrete Minimax Approximations with Application to Filter Design
Lukšan, Ladislav ; Vlček, Jan
The contribution contains a description of two different methods for discrete minimax approximation. These methods can be applied to electrical filter design. We demonstrate properties of these methods on the optimal design of a fourth order band-pass filter. Numerical results of our computational experiments and corresponding conclusions are presented.
Iterační řešení soustav sedlového bodu: stručný přehled
Rozložník, Miroslav
In this contribution we attempt to review recent advances in the field of iterative methods for solving large saddle point problems. The main focus is on developments in the area of Krylov subspace methods and block preconditioning techniques for symmetric and nonsymmetric linear systems that arise in the context of solving the saddle point problems.

Institute of Computer Science : 1,655 records found   beginprevious1646 - 1655  jump to record:
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