Sökning: "resultants"

Hittade 3 avhandlingar innehållade ordet resultants.

  1. 1. Constructive Methods for SAGBI and SAGBI-Gröbner Bases

    Författare :Hans Öfverbeck; Matematik (naturvetenskapliga fakulteten); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics; elimination; intersection; automata; resultants; noncommutative invariants;

    Sammanfattning : The thesis consists of an introduction and the following four papers: Paper I: Using resultants for SAGBI basis verification in the univariate polynomial ring. Authors: Anna Torstensson, Victor Ufnarovski and Hans Öfverbeck. LÄS MER

  3. 2. Principal Parts on P^1 and Chow-groups of the classical discriminants

    Författare :Helge Maakestad; KTH; []
    Nyckelord :Sheaves of principal parts; bimodule structure; splitting-type; positive characteristic; Chow-groups; resultants; group actions; invariant theory; Sylvester-formula;

    Sammanfattning : .... LÄS MER

  4. 3. On Derailment-Worthiness in Rail Vehicle Design : Analysis of vehicle features influencing derailment processes and consequences

    Författare :Dan Brabie; Evert Andersson; Roderick A Smith; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; derailment; bogie design; wheel-sleeper impact; simulation; deviation; vehicle inter-connection; guidance mechanism; substitute guidance; articulated train; railway safety; Vehicle engineering; Farkostteknik;

    Sammanfattning : This thesis aims at systematically studying the possibilities of minimizing devastating consequences of high-speed rail vehicle derailments by appropriate measures and features in the train design including the running gear. Firstly, an empirical database is established containing as much relevant information as possible of past incidents and accidents that have occurred at substantial running speeds due to mechanical failure close to the interface between the running gear and the track. LÄS MER