Search for dissertations about: "linear relations"

Showing result 1 - 5 of 124 swedish dissertations containing the words linear relations.

  1. 1. Non-linear belief revision : Foundations and applications : by John Cantwell

    Author : John Cantwell; Uppsala universitet; []
    Keywords : HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; Philosophy; Belief revision; iterated belief revision; non-linear belief revision; epistemic entrenchment; plausibility relations; possibility relations; preferential relations; sources of information; contradictory information; non- prioritised belief revision; AGM; Filosofi; Philosophy subjects; Filosofiämnen; teoretisk filosofi; Theoretical Philosophy;

    Abstract : Three structures for belief revision: plausability relations on states, relations of epistemic entrenchment on propositions and systems of spheres (hypertheories), are generalised to the non-linear (non-connected) case. The further generalisation to the case of sets of such structures is also investigated. READ MORE

  2. 2. Visualization of Causal Relations

    Author : Niklas Elmqvist; Chalmers University of Technology; []
    Keywords : information visualization; causality visualization; citation network visualization; causal relations;

    Abstract : The notion of cause and effect is pervasive in human thinking and plays a significant role in our perception of time. Software systems, in particular parallel and distributed ones, are permeated by this causality, and the human mind is especially well-suited to detect instances of this concept. READ MORE

  3. 3. Cryptanalysis of Selected Stream Ciphers

    Author : Paul Stankovski; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stream cipher; cryptanalysis; FCSR; state recovery; linear relations; optimal sampling; distinguisher; HC; nonrandomness; greedy bit set algorithm.;

    Abstract : The aim of this dissertation is to show some cryptanalytical results on a selection of stream ciphers. We have grouped theory and results into three main parts. The first part focuses on the FCSR-based constructions X-FCSR and F-FCSR-H v3. For the X-FCSR family of stream ciphers we perform a severe state recovery attack. READ MORE

  4. 4. Polynomial Sequences Generated by Linear Recurrences : Location and Reality of Zeros

    Author : Innocent Ndikubwayo; Boris Shapiro; Rikard Bögvad; Tamás Forgacs; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; real-rooted polynomials; generating functions; discriminants; Tran s conjecture; Toeplitz matrices; matematik; Mathematics;

    Abstract : In this thesis, we study the problem of location of the zeros of individual polynomials in sequences of polynomials generated by linear recurrence relations.In paper I, we establish the necessary and sufficient conditions that guarantee hyperbolicity of all the polynomials generated by a three-term recurrence of length 2, whose coefficients are arbitrary real polynomials. READ MORE

  5. 5. Modelling Interfacial Details in Tyre/Road Contact — Adhesion Forces and Non-Linear Contact Stiffness

    Author : Patrik Andersson; Chalmers University of Technology; []
    Keywords : rough surface; tyre dynamics; tyre road noise; adherence force; adhesion forces; tyre road interaction; dynamic contact; non-linear contact stiffness;

    Abstract : Rolling resistance, noise generation, and wear are all determined by the interaction process between the rolling automotive vehicle tyre and the road. A deep understandingof the interaction process is needed for optimisation aiming at reducing these effects. READ MORE