1 resultado para Geomorphological subdivision
em Repositório Científico do Instituto Politécnico de Lisboa - Portugal
Filtro por publicador
- Aberdeen University (1)
- Abertay Research Collections - Abertay University’s repository (1)
- Aberystwyth University Repository - Reino Unido (1)
- Academic Archive On-line (Stockholm University; Sweden) (1)
- Academic Research Repository at Institute of Developing Economies (1)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (9)
- Adam Mickiewicz University Repository (3)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (6)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (6)
- Aquatic Commons (17)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (8)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (2)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (3)
- Aston University Research Archive (4)
- Biblioteca de Teses e Dissertações da USP (3)
- Biblioteca Digital | Sistema Integrado de Documentación | UNCuyo - UNCUYO. UNIVERSIDAD NACIONAL DE CUYO. (1)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (13)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (16)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (11)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (43)
- Brock University, Canada (3)
- Bulgarian Digital Mathematics Library at IMI-BAS (2)
- Cambridge University Engineering Department Publications Database (15)
- CentAUR: Central Archive University of Reading - UK (32)
- Central European University - Research Support Scheme (1)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (25)
- Cochin University of Science & Technology (CUSAT), India (3)
- CUNY Academic Works (2)
- Deakin Research Online - Australia (26)
- Digital Commons - Michigan Tech (1)
- Digital Commons at Florida International University (1)
- Digital Peer Publishing (1)
- Digital Repository at Iowa State University (1)
- DigitalCommons@The Texas Medical Center (2)
- DigitalCommons@University of Nebraska - Lincoln (2)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (9)
- Helda - Digital Repository of University of Helsinki (4)
- Indian Institute of Science - Bangalore - Índia (14)
- Institutional Repository of Leibniz University Hannover (1)
- Instituto Politécnico do Porto, Portugal (5)
- Massachusetts Institute of Technology (1)
- Memoria Académica - FaHCE, UNLP - Argentina (15)
- Memorial University Research Repository (2)
- National Center for Biotechnology Information - NCBI (10)
- Nottingham eTheses (1)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (2)
- Portal de Revistas Científicas Complutenses - Espanha (5)
- Publishing Network for Geoscientific & Environmental Data (123)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (21)
- Queensland University of Technology - ePrints Archive (24)
- ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
- Repositorio Académico de la Universidad Nacional de Costa Rica (2)
- Repositório Alice (Acesso Livre à Informação Científica da Embrapa / Repository Open Access to Scientific Information from Embrapa) (2)
- Repositório Científico da Universidade de Évora - Portugal (8)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (1)
- Repositório Institucional da Universidade de Aveiro - Portugal (6)
- Repositório Institucional da Universidade de Brasília (2)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (5)
- Repositório Institucional da Universidade Federal do Rio Grande - FURG (1)
- Repositório Institucional da Universidade Tecnológica Federal do Paraná (RIUT) (1)
- Repositorio Institucional de la Universidad de Málaga (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (192)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (1)
- Scientific Open-access Literature Archive and Repository (1)
- Universidad de Alicante (1)
- Universidad del Rosario, Colombia (1)
- Universidad Politécnica de Madrid (15)
- Universidade de Lisboa - Repositório Aberto (2)
- Universidade dos Açores - Portugal (1)
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP) (1)
- Universidade Federal do Pará (8)
- Universidade Federal do Rio Grande do Norte (UFRN) (32)
- Universita di Parma (2)
- Universitat de Girona, Spain (6)
- Université de Lausanne, Switzerland (1)
- Université de Montréal, Canada (7)
- Université Laval Mémoires et thèses électroniques (1)
- University of Michigan (27)
- University of Queensland eSpace - Australia (8)
- University of Southampton, United Kingdom (1)
- University of Washington (2)
- USA Library of Congress (2)
Resumo:
In the Sparse Point Representation (SPR) method the principle is to retain the function data indicated by significant interpolatory wavelet coefficients, which are defined as interpolation errors by means of an interpolating subdivision scheme. Typically, a SPR grid is coarse in smooth regions, and refined close to irregularities. Furthermore, the computation of partial derivatives of a function from the information of its SPR content is performed in two steps. The first one is a refinement procedure to extend the SPR by the inclusion of new interpolated point values in a security zone. Then, for points in the refined grid, such derivatives are approximated by uniform finite differences, using a step size proportional to each point local scale. If required neighboring stencils are not present in the grid, the corresponding missing point values are approximated from coarser scales using the interpolating subdivision scheme. Using the cubic interpolation subdivision scheme, we demonstrate that such adaptive finite differences can be formulated in terms of a collocation scheme based on the wavelet expansion associated to the SPR. For this purpose, we prove some results concerning the local behavior of such wavelet reconstruction operators, which stand for SPR grids having appropriate structures. This statement implies that the adaptive finite difference scheme and the one using the step size of the finest level produce the same result at SPR grid points. Consequently, in addition to the refinement strategy, our analysis indicates that some care must be taken concerning the grid structure, in order to keep the truncation error under a certain accuracy limit. Illustrating results are presented for 2D Maxwell's equation numerical solutions.