Export 9208 results:
Sort by: Author Title Type [ Year  (Desc)]
2007
Böttcher, Albrecht, Alexei Yu. Karlovich, and Bernd Silbermann. "Generalized Krein algebras and asymptotics of Toeplitz determinants." Methods of Functional Analysis and Topology. 13.2 (2007): 236-261. AbstractWebsite

We give a survey on generalized Krein algebras \(K_{p,q}^{\alpha,\beta}\) and their applications to Toeplitz determinants. Our methods originated in a paper by Mark Krein of 1966, where he showed that \(K_{2,2}^{1/2,1/2}\) is a Banach algebra. Subsequently, Widom proved the strong Szeg\H{o} limit theorem for block Toeplitz determinants with symbols in \((K_{2,2}^{1/2,1/2})_{N\times N}\) and later two of the authors studied symbols in the generalized Krein algebras \((K_{p,q}^{\alpha,\beta})_{N\times N}\), where \(\lambda:=1/p+1/q=\alpha+\beta\) and \(\lambda=1\). We here extend these results to \(0<\lambda<1\). The entire paper is based on fundamental work by Mark Krein, ranging from operator ideals through Toeplitz operators up to Wiener-Hopf factorization.

Dimitrovová, Z., J. N. Varandas, and M. A. G. Silva. "Ground Vibrations Induced by High-Speed Trains in Regions with Sudden Foundation Stiffness Change." Proceedings of the 11th International Conference on Civil, Structural and Environmental Engineering Computing. St. Julians, Malta 2007.
Hoppenot, P., Rybarczyk Y., and Mestre D. "Human-like conception of a remote control robotic system." IFAC Human Machine Systems’07. Seoul, South Korea 2007. copy.pdf
R. Ramos, F. Alencar, J. Araújo, A. Moreira, J. F. B. Castro, and R. D. Penteado. "i* with Aspects: Evaluating Understandability." Workshop em Engenharia de Requisitos. Canada: University of Toronto, 2007. Abstract

n/a

Eaton, Peter, Gonçalo Doria, Eulália Pereira, Pedro V. Baptista, and Ricardo Franco. "Imaging gold nanoparticles for DNA sequence recognition in biomedical applications." IEEE Transactions on Nanobioscience. 6.4 (2007): 282-288.eaton_et_al_ieee_trans_nanobiosci_6_2007_282.pdf
Nunes, Y., A. Wemans, P. R. Gordo, and M. J. P. Maneira. "The influence of magnetic confinement in DC abnormal-glow discharges." Vacuum. 81.11-12 (2007): 1498-1502.
Jordan Algebraic Approach to Symmetric Optimization. Delft University of Technology. Delft, The Netherlands, 2007.PhD_vieira.pdf
SCUTARU, G., F. SANDU, E. COCORADA, M. PAVALACHE, L. Gomes, F. Coito, A. K. MÖRSKY-LINDQUIST, D. TALABA, V. NEUNDORF, V. FEDAK, and others Konsoliderad rapport ang{\aa}ende användning av VR och fjärrexperiment i utbildning., 2007. Abstract

n/a

Chaari, S., F. Cipriano, and H. Ouerdiane. "Large deviation properties of solutions of nonlinear stochastic convolution equations." Adv. Theor. Appl. Math.. 2 (2007): 1-14. Abstract

n/a

Pikhurko, Oleg, and Teresa Sousa. "Minimum H-Decompositions of Graphs." Journal of Combinatorial Theory, B. 97 (2007): 1041-1055. Abstracth_decomposition.pdfWebsite

Given graphs G and H, an H-decomposition of G is a partition of the edge set of G such that each part is either a single edge or forms a graph isomorphic to H. Let φH(n) be the smallest number φ such that every graph G of order n admits an H-decomposition with at most φ parts. In the paper it is proved that φH(n)=tr−1(n)+o(n2) for every graph H of chromatic number r≥3, where tr(n) is the maximum size of an r-partite graph of order n. Moreover, when H is bipartite, the authors determine φH(n) with a constant additive error.

Doria, Gonçalo, Ricardo Franco, and Pedro Baptista. "Nanodiagnostics: fast colorimetric method for single nucleotide polymorphism/mutation detection." IET Nanobiotechnology. 1.4 (2007): 53-57.doria_et_al_iet_nanobiotech_1_2007_53-57.pdf
Ortigueira, M. D., and AG Batista. "A new look at the fractional Brownian motion definition." Conference on Multibody Systems, Nonlinear Dynamics and Control (MSNDC). ASME IDETC07, 2007.
Rauter, Amélia P., Isabel Branco, Rui G. Lopes, Jorge Justino, Filipa V. M. Silva, João P. Noronha, Eurico J. Cabrita, Ignacio Brouard, and Jaime Bermejo. "A new lupene triterpenetriol and anticholinesterase activity of Salvia sclareoides." Fitoterapia. 78.7-8 (2007): 474-481.A New Lupene Triterpenetriol and Anticholinesterase Activity of Salvia sclareoides 2007.pdf
Oliveira, F., and A. J. Soares. "A non-trivial explicit solution for the 14-velocity Cabannes kinetic model." Journal of Nonlinear Analysis TMA. 67.4 (2007): 1167-1172.Website
Correia, Isabel. "On capacitated location problems with modular links and general distribution costs." INOC 2007 Proceedings – International Network Optimization Conference. Spa, Belgium 2007. Abstract

n/a

Malheiro, A. On trivializers and subsemigroups.. Semigroups and formal languages. Proceedings of the international conference in honour of the 65th birthday of Donald B. McAlister. Lisboa, Portugal, July 12–15, 2005.: Hackensack, NJ: World Scientific, 2007. Abstract

The aim of this paper is to develop the calculus of trivializers for subsemigroups. Given a finite presentation defining a semigroup S and a trivializer of the Squier complex of , we obtain an infinite trivializer of the Squier complex of a finite presentation defining a subsemigroup of S. Also, we give a method to find finite trivializers for special subsemigroups and hence to show that those subsemigroups have finite derivation type (FDT). An application of this method is given: we prove that if is a band of monoids having FDT, then so does Sα, for any α ∈Y.

Amado, M. P., A. J. Pinto, and C. V. Santos Operative Process in Sustainable Urban Planning. IFHP. Melbourne, Australia: RMIT University, 2007.
Salema, Maria Isabel Gomes, Ana Paula Barbosa-povoa, and Augusto Q. Novais. "An optimization model for the design of a capacitated multi-product reverse logistics network with uncertainty." European Journal of Operational Research. 179 (2007): 1063-1077. AbstractWebsite

In this work the design of a reverse distribution network is studied. Most of the proposed models on the subject are case based and, for that reason, they lack generality. In this paper we try to overcome this limitation and a generalized model is proposed. It contemplates the design of a generic reverse logistics network where capacity limits, multi-product management and uncertainty on product demands and returns are considered. A mixed integer formulation is developed which is solved using standard B&B techniques. The model is applied to an illustrative case.

Gaspar, A., O. Mateus, and F. Almada. "Os argumentos criacionistas em face da evidência científica." Evolução e Criacionismo: Uma Relação Impossível. Lisboa: Quasi ed., 2007. 197-237.gasparmateusealmada2007argumentosevo.pdf
Goulão, Miguel, and Fernando Brito Abreu. "An overview of metrics-based approaches to support software components reusability assessment." Software Quality Measurement: Concepts and Approaches. Ed. Ravi Kumar Jain B. Hyderabad: ICFAI Books, 2007. 264. Abstractgoulaoabreubookchapter.pdf

Objective: To present an overview on the current state of the art concerning metrics-based
quality evaluation of software components and component assemblies.
Method: Comparison of several approaches available in the literature, using a framework
comprising several aspects, such as scope, intent, definition technique, and maturity.
Results: The identification of common shortcomings of current approaches, such as
ambiguity in definition, lack of adequacy of the specifying formalisms and insufficient
validation of current quality models and metrics for software components.
Conclusions: Quality evaluation of components and component-based infrastructures
presents new challenges to the Experimental Software Engineering community.

Pinho, Fernando F. S. Paredes de Alvenaria Ordinária – Estudo experimental com modelos simples e reforçados. Eds. Manuel F. C. BAIÃO, and Válter J. G. Lúcio. Universidade Nova de Lisboa. Lisboa, 2007.
Amado, M. P. A participação da população no processo de ordenamento das áreas de paisagem protegida. Colóquio Património Paisagístico. Lisboa, Portugal: Associação Portuguesa de Arquitectos Paisagistas, 2007.
Amado, M. P. "Planeamento Urbano Sustentável - Processo Operativo." Revista Universidade Autonoma. 2 (2007): 35-40.