Sökning: "matematik och kommunikation"
Visar resultat 1 - 5 av 38 avhandlingar innehållade orden matematik och kommunikation.
1. On the optimal stopping time of learning
Sammanfattning : The goal of this thesis is to study the economics of computational learning. Attention is also paid to applications of computational learning models, especially Valiant's so-called `probably approximately correctly' (PAC) learning model, in econometric situations. LÄS MER
2. Tankeform och problemmiljö : skolan som kontext för tänkande i elementär matematik
Sammanfattning : Avhandlingen är en sammanfattning av två empiriska studier som analyserar karaktären av kognitiva aktiviteter vid de betingelser för kommunikation som är utmärkande för pedagogiska miljöer. Elever i årskurs 6 har under vanliga matematiklektioner fått lösa vissa räkneuppgifter under olika situationella krav. LÄS MER
3. Performance Assessment of Cooperative Relay Networks with Advanced Radio Transmission Techniques
Sammanfattning : In the past decade, cooperative communications has been emerging as a pertinent technology for the current and upcoming generations of mobile communication infrastructure. The indispensable benefits of this technology have motivated numerous studies from both academia and industry on this area. LÄS MER
4. Modeling Specialization and Division of Labor in Cultural Evolution
Sammanfattning : Division of labor and division of knowledge are so important and common in society today that it is difficult to imagine a functional society where everyone knows the same things and performs the same tasks. In such a society everyone grows, or gathers, and prepares their own food, makes their own tools, builds their own house, and so on. LÄS MER
5. Reordering in Noncommutative Algebras, Orthogonal Polynomials and Operators
Sammanfattning : The main object studied in this thesis is the multi-parametric family of unital associative complex algebras generated by the element $Q$ and the finite or infinite set $\{S_j\}_{j\in J}$ of elements satisfying the commutation relations $S_jQ=\sigma_j(Q)S_j$, where $\sigma_j$ is a polynomial for all $j\in J$. A concrete representation is given by the operators $Q_x(f)(x)=xf(x)$ and $\alpha_{\sigma_j}(f)(x)=f(\sigma_j(x))$ acting on polynomials or other suitable functions. LÄS MER
