Sökning: "Rational method"

Visar resultat 1 - 5 av 186 avhandlingar innehållade orden Rational method.

1. 1. Meta - Method for Method Configuration : A Rational Unified Process Case

   Författare :Fredrik Karlsson; Göran Goldkuhl; Anders Avdic; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; systems engineering methods; Rational Unified Process; method configuration; method engineering; Configuration Package; Configuration Template; Datavetenskap; Computer science; Datavetenskap;

   Sammanfattning : The world of systems engineering methods is changing as rigorous ‘off-the-shelf’ systems engineering methods become more popular. One example of such a systems engineering method is Rational Unified Process. LÄS MER

3. 2. Method rationale revealed : communication of knowledge in systems development methods

   Författare :Kai Wistrand; Åke Grönlund; Nancy Russo; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Systems development; Systems development methods; Method rationale; Method components; Method engineering; Informatics; computer and systems science; Informatik; data- och systemvetenskap; Informatics; Informatik; Informatics; Informatik;

   Sammanfattning : The practice of developing information systems with the support of information systems development methods is not new. A vast number of systems development methods have been suggested over the years in an attempt to solve the problems a development organisation might encounter. LÄS MER

4. 3. Counting rational points on genus one curves

   Författare :Manh Hung Tran; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diophantine equations; rational points; Elliptic curves; genus; descent; determinant method; cubic and quartic curves; genus;

   Sammanfattning : This thesis contains two papers dealing with counting problems for curves of genus one. We obtain uniform upper bounds for the number of rational points of bounded height on such curves. The main tools to study these problems are descent and various refined versions of Heath-Brown’s p-adic determinant method. LÄS MER

5. 4. Model Order Reduction with Rational Krylov Methods

   Författare :K. Henrik A. Olsson; Axel Ruhe; Volker Mehrmann; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Model order reduction; dual rational Arnoldi; rational Krylov; moment matching; eigenvalue computation; stability analysis; heat exchanger model; Numerical analysis; Numerisk analys;

   Sammanfattning : Rational Krylov methods for model order reduction are studied. A dual rational Arnoldi method for model order reduction and a rational Krylov method for model order reduction and eigenvalue computation have been implemented. It is shown how to deflate redundant or unwanted vectors and how to obtain moment matching. LÄS MER

7. 5. The density of rational points and invariants of genus one curves

   Författare :Manh Hung Tran; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; genus one; discriminant; modular form; Elliptic curve; height; descent; determinantal representation; invariant; rational point; theta function.; determinant method;

   Sammanfattning : The present thesis contains three papers dealing with two arithmetic problems on curves of genus one, which are closely related to elliptic curves. The first problem is to study the density of rational points presented in Papers I and II. LÄS MER