Sökning: "Rational numbers"

Visar resultat 1 - 5 av 24 avhandlingar innehållade orden Rational numbers.

  1. 1. What is taught and what is learned. Professional insights gained and shared by teachers of mathematics

    Författare :Angelika Kullberg; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; learning study; variation theory; teaching; learning; mathematics education; negative numbers; rational numbers;

    Sammanfattning : The aim of the thesis is to contribute to knowledge about relationships between teaching and learning in school. The framework used in this research, variation theory, states that, to improve student learning, attention must be paid to what is being learned, the capability that is to be improved and the features (critical features) that it is necessary for the learner to discern. LÄS MER

  3. 2. Contact cohomology and characteristic numbers of rational plane curves

    Författare :Lars Ernström; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. Rationella tal som tal : Algebraiska symboler och generella modeller som medierande redskap

    Författare :Helena Eriksson; Torbjörn Tambour; Inger Eriksson; Astrid Pettersson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Rational numbers; learning study; learning activity; Mathematics education; Rationella tal; lärandeverksamhet; matematikundervisning; matematikämnets didaktik; Mathematics Education; Education and Learning;

    Sammanfattning : In this study the teaching of mathematics has been developed in relation to rational numbers and towards a learning activity. At the same time topic-specific mediated tools have been studied. The iterative model for learning study has been used as research approach. LÄS MER

  5. 4. 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

  7. 5. Computational dynamics – real and complex

    Författare :Anna Belova; Warwick Tucker; Denis Gaidashev; Àlex Haro Provinciale; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Continued fractions; Generating functions; Rotation numbers; Rigorous computations; Interval analysis; Interval arithmetic; Multipliers; Quadratic map; Kuramoto-Sivashinsky equation; Mathematics; Matematik;

    Sammanfattning : The PhD thesis considers four topics in dynamical systems and is based on one paper and three manuscripts.In Paper I we apply methods of interval analysis in order to compute the rigorous enclosure of rotation number. LÄS MER