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 Title
 STOCHASTIC MODELS OF ECONOMIC INDICATORS.
 Creator
 MONTALI, VINCENT LOUIS, JR., Florida Atlantic University, Stronge, William B., College of Business, Department of Economics
 Abstract/Description

This thesis is a study of time series modeling methods applied to six economic indicators. The weaknesses of the turning point analysis used by the National Bureau of Economic Research and deterministic models which fail to explain the random component of a series' movement are discussed. Univariate stochastic time series methods are introduced and applied to the economic indicators. The resulting models fit the data much more closely and their residuals are white noise. Bivariate time series...
Show moreThis thesis is a study of time series modeling methods applied to six economic indicators. The weaknesses of the turning point analysis used by the National Bureau of Economic Research and deterministic models which fail to explain the random component of a series' movement are discussed. Univariate stochastic time series methods are introduced and applied to the economic indicators. The resulting models fit the data much more closely and their residuals are white noise. Bivariate time series models are estimated for pairs of economic indicators from similar economic processes to investigate the validity of the lag structures commonly employed on the basis of turning point analysis.
Show less  Date Issued
 1978
 PURL
 http://purl.flvc.org/fcla/dt/13927
 Subject Headings
 Stochastic analysis, Stochastic integral equations
 Format
 Document (PDF)
 Title
 A class of rational surfaces with a nonrational singularity explicitly given by a single equation.
 Creator
 Harmon, Drake., Charles E. Schmidt College of Science, Department of Mathematical Sciences
 Abstract/Description

The family of algebraic surfaces X dened by the single equation zn = (y a1x) (y anx)(x 1) over an algebraically closed eld k of characteristic zero, where a1; : : : ; an 2 k are distinct, is studied. It is shown that this is a rational surface with a nonrational singularity at the origin. The ideal class group of the surface is computed. The terms of the ChaseHarrisonRosenberg seven term exact sequence on the open complement of the ramication locus of X ! A2 are computed; the Brauer group...
Show moreThe family of algebraic surfaces X dened by the single equation zn = (y a1x) (y anx)(x 1) over an algebraically closed eld k of characteristic zero, where a1; : : : ; an 2 k are distinct, is studied. It is shown that this is a rational surface with a nonrational singularity at the origin. The ideal class group of the surface is computed. The terms of the ChaseHarrisonRosenberg seven term exact sequence on the open complement of the ramication locus of X ! A2 are computed; the Brauer group is also studied in this unramied setting. The analysis is extended to the surface eX obtained by blowing up X at the origin. The interplay between properties of eX , determined in part by the exceptional curve E lying over the origin, and the properties of X is explored. In particular, the implications that these properties have on the Picard group of the surface X are studied.
Show less  Date Issued
 2013
 PURL
 http://purl.flvc.org/fcla/dt/3360782
 Subject Headings
 Mathematics, Galois modules (Algebra), Class field theory, Algebraic varieties, Integral equations
 Format
 Document (PDF)
 Title
 Application of MoM: Scattering calculations using condition number.
 Creator
 Zhuang, Zhijun., Florida Atlantic University, Bagby, Jonathan S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
 Abstract/Description

Computational accuracy is widely recognized as a critical issue in applied electromagnetics. Increasing computational power is being applied to solve more complex electromagnetic systems with an emphasis on computational accuracy. The work of this thesis is focused on the implementation of Method of Moments (MoM) to integral equation formulations. The goal of this effort is to use what is known as condition number, and, a heuristic ruleofthumb is applied to investigate the computational...
Show moreComputational accuracy is widely recognized as a critical issue in applied electromagnetics. Increasing computational power is being applied to solve more complex electromagnetic systems with an emphasis on computational accuracy. The work of this thesis is focused on the implementation of Method of Moments (MoM) to integral equation formulations. The goal of this effort is to use what is known as condition number, and, a heuristic ruleofthumb is applied to investigate the computational accuracy of MoM in numerical electromagnetics. Other possible applications of condition number of the MoM matrix are also indicated.
Show less  Date Issued
 1999
 PURL
 http://purl.flvc.org/fcla/dt/15719
 Subject Headings
 Electromagnetism, Moments method (Statistics), Electromagnetic theory, Integral equationsNumerical solutions
 Format
 Document (PDF)