Sökning: "jörgen sjögren"
Hittade 3 avhandlingar innehållade orden jörgen sjögren.
1. Concept Formation in Mathematics
Sammanfattning : This thesis consists of three overlapping parts, where the first one centers around the possibility of defining a measure of the power of arithmetical theories. In this part a partial measure of the power of arithmetical theories is constructed, where “power” is understood as capability to prove theorems. LÄS MER
2. Measuring the Power of Arithmetical Theories
Sammanfattning : This thesis discusses the possibility to measure the power of extentions of Peano Aritmetic, P A. It consists of three parts, an introduction and two separately written papers. LÄS MER
3. Essays on Stock Market Integration - On Stock Market Efficiency, Price Jumps and Stock Market Correlations
Sammanfattning : This thesis consists of four self-contained papers related to the change of market structure and the quality of equity market.In Paper [I] we found, by using of a Flexible Dynamic Component Correlations (FDCC) model, that the creation of a common cross-border stock trading platform has increased the long-run trends in conditional correlations between foreign and domestic stock market returns. LÄS MER