BookDOI
Numerische Mathematik 1
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The article was published on 1989-01-01. It has received 2186 citations till now.read more
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Journal ArticleDOI
A novel CVM precoding scheme for PAPR reduction in OFDM transmissions
TL;DR: A new precoding method is proposed and analyzed based on complex Vandermonde matrix (CVM) which outperforms most of the powerful precoding techniques and can achieve a PAPR gain up to 6.5 and 7.4 dB for IEEE 802.11a and DVB-T OFDM systems.
Journal ArticleDOI
Two Ways to Extend the Cholesky Decomposition to Block Matrices with Interval Entries
TL;DR: Two block interval Cholesky decompositions are defined in order to bound the solutions of linear systems of equations with symmetric block matrices and right-hand sides both of which are varying within given intervals.
Journal ArticleDOI
Finite element methods for problems with solid-liquid-solid phase transitions and free melt surface
TL;DR: In this article, two different approaches for handling the phase transitions by applying in a FE method, namely an energy conservation based approach, and a sharp interface approach with moving mesh, are presented.
DissertationDOI
Economic efficiencies of the energy flows from the primary resource suppliers to the electric load centers
TL;DR: In this article, the authors propose a novel approach to solve the problem of homonymity in homonymization, i.e., homonymonymity-of-homonymity.
Journal ArticleDOI
Simulations of Transformer Inrush Current by Using BDF-Based Numerical Methods
TL;DR: In this article, three different transformer models for inrush current simulations are described, which are not dependent on an integration step, thus they can be incorporated in a state-space form of stiff differential equation systems.