No description available.

Thesis (PH. D.)--University of Chicago, 1913. / Vita. "Reprinted in American Journal of Mathematics, vol. XXXVIII, no. 3, July, 1916." Includes bibliographical references. Also available on the Internet.

Thesis (Ph. D.)--University of Chicago, 1913. / Vita. "Reprinted in American Journal of Mathematics, vol. XXXVIII, no. 3, July, 1916." Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1969. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

A statistical study of the orbital elements of Spectroscopic Binary Systems is undertaken with attention given to the distribution of ω, the longitude of periastron, and the observed distribution of orbital eccentricities and periods. Selection effects are taken into account in both cases. Test results indicate that the major non-uniformities previously found by other investigators for the distribution of u have been reduced or eliminated for certain categories of data. A positive correlation is discovered for the observed tabulation of periods and eccentricities. The latter result is viewed with caution, due to certain criteria established in the analysis. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

No description available.

acase@tulane.edu / Let G be a reductive group, B be a Borel subgroup, and let K be a symmetric subgroup of G. The study of B orbits in a symmetric variety G/K or, equivalently, the study of K orbits in a flag variety G/B has importance in the study of Harish-Chandra modules; it comes with many interesting Schubert calculus problems. Although this subject is very well studied, it still has many open problems from combinatorial point of view. The most basic question that we want to be able to answer is that how many B orbits there are in G/K. In this thesis, we study the enumeration problem of Borel orbits in the case of classical symmetric varieties. We give explicit formulas for the numbers of Borel orbits on symmetric varieties for each case and determine the generating functions of these numbers. We also explore relations to lattice path enumeration for some cases. In type A, we realize that Borel orbits are parameterized by the lattice paths in a pxq grid moving by only horizontal, vertical and diagonal steps weighted by an appropriate statistic. We provide extended results for type C as well. We also present various t-analogues of the rank generating function for the inclusion poset of Borel orbit closures in type A. / 1 / Ozlem Ugurlu

Thèse : Mécanique : Faculté des sciences de Paris : 1852. Thèse : Astronomie : Faculté des sciences de Paris : 1852. / Titre provenant de l'écran-titre.

Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references. Available also from UMI/Dissertation Abstracts International.

Thesis (M.S. in Astronautical Engineering)--Naval Postgraduate School, March 2004. / Thesis advisor(s): I. Michael Ross, Don Danielson. Includes bibliographical references (p. 39-40). Also available online.