Esscher transform and the duality principle for multidimensional semimartingales

The duality principle in option pricing aims at simplifying valuation problems that depend on several variables by associating them to the corresponding dual option pricing problem. Here, we analyze the duality principle for options that depend on several assets. The asset price processes are driven by general semimartingales, and the dual measures are constructed via an Esscher transformation. As an application, we can relate swap and quanto options to standard call and put options. Explicit calculations for jump models are also provided.Comment: Published in at http://dx.doi.org/10.1214/09-AAP600 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org

Biography of Pastor Ernst Moritz Buerger (1806-1841) with Special Emphasis on his Decision to Leave Perry County, Missouri

Biography of Pastor Ernst Moritz Buerger (1806-1841) with Special Emphasis on his Decision to Leave Perry County, Missour

The complexity of the word problems for commutative semigroups and polynomial ideals

AbstractAny decision procedure for the word problems for commutative semigroups and polynomial deals inherently requires computational storage space growing exponentially with the size of the problem instance to which the procedure is applied. This bound is achieved by a simple procedure for the semigroup problem

Regimes of atomic diffraction: Raman versus Bragg diffraction in retroreflective geometries

We provide a comprehensive study of atomic Raman and Bragg diffraction when coupling to a pair of counterpropagating light gratings (double diffraction) or to a single one (single diffraction) and discuss the transition from one case to the other in a retroreflective geometry as the Doppler detuning changes. In contrast to single diffraction, double Raman loses its advantage of high diffraction efficiency for short pulses and has to be performed in a Bragg-type regime. Moreover, the structure of double diffraction leads to further limitations for broad momentum distributions on the efficiency of mirror pulses, making the use of (ultra) cold ensembles essential for high diffraction efficiency.Comment: 16 pages, 14 figure

Overcoming the Challenges of Retaining Novice Teachers in a County Public School by Ernst Albert

Retaining novice teachers in a Northeast Florida county public school is an ongoing challenge. Research indicates that 14% of new teachers will leave the field within 5 years. The purpose of this case study was to investigate the major factors that contributed to this unique group of novice teachers\u27 decisions to continue to teach at the school during their first 5 years in the field. The societal model served as the conceptual framework for this study of factors affecting teacher turnover, with emphasis on teacher and school characteristics in relation to teacher attrition. Data collected from 9 interviews and an observation and analyzed inductively were used to answer the key research question about what factors contributed to new teachers\u27 retention. The findings of this study indicated that teacher preparation, administrative support, school environment, working conditions, and student characteristics influenced teacher retention at the local site. Recommendations that stemmed from the findings were formulated into a proposal for a new teacher professional development series that the participating school can use to improve new teacher retention rates. This study promotes positive social change by implementing measures to stabilize new teacher retention rates, which will improve student learning and promote academic success by creating stability in the learning environment

Wie beeinflusst das Bildungssystem die Übertrittsprozesse von der Schule in den Beruf?

"In diesem induktiven Beitrag sollen literaturgestützt relevante Eigenschaften örtlich und zeitlich differierender Bildungssysteme, sowie Eigenschaften von Bildung als (eigenlogisch operierendem) System identifiziert werden, denen ein Einfluss auf Übertrittsprozesse zwischen Schule und Beruf zugeschrieben werden kann. Gewichtet nach empirischer 'Beweislast' und ergänzt mit Anschlussüberlegungen sollten sie in ein besseres theoretisches Verständnis des fraglichen Zusammenhangs münden. (...) Unmittelbar anschliessend (2) sollen die wichtigsten Begriffe der Forschungsfrage geklärt werden. Der Hauptteil (3) versammelt als jeweilige Unterkapitel wichtige literaturgestützt identifizierte Faktoren, über die das Bildungssystem Übertrittsprozesse beeinflussen kann. Eingeschlossen sind jeweils dazu anführbare theoretische Verknüpfungen, empirische Belege und Argumente. Im Fazit (4) sollen die Befunde zu einer bestmöglichen Beantwortung der Forschungsfrage zusammengezogen und eine Schlussbetrachtung angehängt werden. Methodische Aspekte der rezipierten Forschungsliteratur sollen bei punktueller besonderer Relevanz angesprochen werden. In einem Anhang sind wichtige Theorien zur Beziehung von Bildung und Beschäftigung, respektive zum Wandel dieser Beziehung zusammengestellt." (Textauszug

Module based configuration definition to enable design re-use and manufacturing system simplification in the commercial aircraft industry

Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1996.Includes bibliographical references.by Albert E. Koszarek.M.S

Quantum Test of the Universality of Free Fall

We simultaneously measure the gravitationally-induced phase shift in two Raman-type matter-wave interferometers operated with laser-cooled ensembles of $^{87}$Rb and $^{39}$K atoms. Our measurement yields an E\"otv\"os ratio of $\eta_{\text{Rb,K}}=(0.3\pm 5.4)\times 10^{-7}$. We briefly estimate possible bias effects and present strategies for future improvements