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225 194 (0,42s)

Result

Newton-type multilevel optimization method

Inspired by multigrid methods for linear systems of equations, multilevel. Multilevel methods make more assumptions regarding the structure of the optimization-scale models. The impressive performance of multil...

Pure mathematics

  • 2022
  • Jimp
  • Link
Result

Preconditioning of Iterative Methods - Theory and Applications 2013

The main scientific themes of the conference were preconditioning of sparse matrix problems, symmetric or non-symmetric, arising in large-scale real applications, multilevel preconditioning techniques, including multigrid, algebraic mult...

BA - Obecná matematika

  • 2013
  • M
  • Link
Result

High Voltage Multilevel Flying-capacitor Type Inverter

A survey of used methods for multilevel inverters, circuitry of two solutions is described.

JA - Elektronika a optoelektronika, elektrotechnika

  • 2002
  • D
Result

Multilevel Solution of Some Problems with Fast Changing Data

The paper presents some properties of multilevel methods of solving elliptic partial differential equations. Multilevel bilinear finite element functions are used and the condition numbers of the corresponding stiffness mat...

BA - Obecná matematika

  • 2004
  • D
Result

Testability Enhancement of Multilevel Designs Guided by Testability Analysis Method

In the paper, multilevel extension of previously published register-transfer level testability analysis method is presented. It is illustrated how libraries and net-lists of multilevel designs can be described in special la...

JC - Počítačový hardware a software

  • 2008
  • D
Result

High Voltage Multilevel Flying-Capacitor Type

This paper describees one from methods using proper semiconductor valve connection and valve voltage distribution in multilevel inverter......

JE - Nejaderná energetika, spotřeba a užití energie

  • 2002
  • A
Result

Coarse problems of balanced domain decomposition methods by constraints

We show that the coarse problem solved within the balanced decomposition method by constraints can be preconditioned using the algebraic multilevel techniques. Some basic types of coarse degrees of freedom are considered and appropr...

BA - Obecná matematika

  • 2010
  • D
Result

Algebraic Multilevel Methods with Aggregations: An Overview

The paper deals with the numerical solution of elliptic boundary value problems by multilevel solvers with coarse levels created by aggregation. The paper provides and overview of applications of the aggregation technique, which undergo an i...

BA - Obecná matematika

  • 2006
  • D
Result

Numerical Iterative Methods Solving Three-Phase Multilevel Voltage Converter

iterative methods for calculating the optimum sequence of switching angles for the multilevel converter of direct to alternating voltage in the three-phase system. Advantages and disadvantages of numerical iterative methods

BD - Teorie informace

  • 2010
  • D
Result

An overview of multilevel methods with aggressive coarsening and massive polynomial smoothing

We review our two-level and multilevel methods with aggressive coarsening and polynomial smoothing. These methods can be seen as a less expensive and more flexible (in the multilevel case) alternative to domain dec...

BA - Obecná matematika

  • 2015
  • Jx
  • Link
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