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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Classes of Linear Operators and the Distribution of Zeros of Entire Functions

Piotrowski, Andrzej January 2007 (has links)
Motivated by the work of Pólya, Schur, and Turán, a complete characterization of multiplier sequences for the Hermite polynomial basis is given. Laguerre's theorem and a remarkable curve theorem due to Pólya are generalized. Sufficient conditions for the location of zeros in certain strips in the complex plane are determined. Results pertaining to multiplier sequences and complex zero decreasing sequences for other polynomial sets are established. / viii, 178 leaves, bound ; 29 cm. / Thesis (Ph. D.)--University of Hawaii at Manoa, 2007.
2

A study of Hardy's inequalities in the weighted Hardy spaces

Su, Hung-Wei 18 June 2006 (has links)
In this paper, we prove a weighted atom inequality for Hermite expansions and want to obtain similar type of inequalities for 1-dimensional Hermite expansions of weighted Hardy's inequalities.
3

Some aspects of n-dimensional Lagrange and Hermite interpolation

Chung, Kwok-chiu, 鍾國詔 January 1974 (has links)
published_or_final_version / Mathematics / Master / Master of Philosophy
4

Some aspects of n-dimensional Lagrange and Hermite interpolation.

Chung, Kwok-chiu, January 1974 (has links)
Thesis--M. Phil., University of Hong Kong. / Mimeographed.
5

The question of uniqueness for G.D. Birkoff interpolation problems

Ferguson, David. Birkhoff, George David, January 1968 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1968. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.
6

Monitoring Ischemic Changes in Electrocardiograms using Dickinson-Steiglitz Discrete Hermite Functions

Arichi, Maiko 23 September 2005 (has links)
No description available.
7

Robust analysis and design of control systems with parametric uncertainty

Tan, Nusret January 1999 (has links)
No description available.
8

Beste einseitige L-Approximation mit Quasi-Blending-Funktionen

Klinkhammer, John. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2001--Duisburg.
9

Direct Mathematical Method for Real-time Ischemic Detection from Electrocardiograms Using the Discrete Hermite Transform

Arichi, Maiko 22 September 2011 (has links)
No description available.
10

Modelos multiníveis Weibull com efeitos aleatórios / Multilevel Weibull models with random effects

Hernandez Barajas, Freddy 28 February 2013 (has links)
Os modelos multiníveis são uma classe de modelos úteis na análise de bases de dados com estrutura hierárquica. No presente trabalho propõem-se os modelos multiníveis com resposta Weibull, nos quais são considerados interceptos aleatórios na modelagem dos dois parâmetros da distribuição da variável resposta. Os modelos aqui propostos são flexíveis devido a que a distribuição dos interceptos aleatórios pode der escolhida entre uma das seguintes quatro distribuições: normal, log--gama, logística e Cauchy. Uma extensão dos modelos é apresentada na qual é possível incluir na parte sistemática dos dois parâmetros da distribuição da variável resposta interceptos e inclinações aleatórias com distribuição normal bivariada. A estimação dos parâmetros é realizada pelo método de máxima verossimilhança usando a quadratura de Gauss--Hermite para aproximar a função de verossimilhança. Um pacote em linguagem R foi desenvolvido especialmente para a estimação dos parâmetros, predição dos efeitos aleatórios e para a obtenção dos resíduos nos modelos propostos. Adicionalmente, por meio de um estudo de simulação foi avaliado o impacto nas estimativas dos parâmetros do modelo ao assumir incorretamente a distribuição dos interceptos aleatórios. / Multilevel models are a class of models useful in the analysis of datasets with hierarchical structure. In the present work we propose multilevel Weibull models in which random intercepts are considered to model the two parameters of the Weibull distribution. The proposed models are flexible due to random intercepts distribution can be chosen from one of the four following distributions: normal, log-gamma, logistics and Cauchy. An extension of the models is presented in which we can include, in the systematic part of the two parameters of the distribution, random intercepts and slopes with a bivariate normal distribution. The parameter estimation is performed by maximum likelihood method using the Gauss Hermite quadrature to approximate the likelihood function. A package in R language was especially developed to obtain parameter estimation, random effects predictions and residuals for the proposed models. Additionally, through a simulation study we investigated the misspecification random effect distribution on estimated parameter for the proposed model

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