tag:blogger.com,1999:blog-2869626267608085442024-03-13T11:41:30.531+00:00ceocCentre for Research on Optimization and Control<br>
http://ceoc.mat.ua.ptaprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comBlogger51125tag:blogger.com,1999:blog-286962626760808544.post-26532806993928645312013-09-26T10:14:00.002+01:002013-09-26T10:17:39.760+01:00CEOC had finished its activities in the end of 2009<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span>
<span style="font-family: Arial, Helvetica, sans-serif;">CEOC (Centre for Research on Optimization and Control) had finished its activities in the end of 2009 and this webpage contains an archive of the work that had been done.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">CEOC was a research unit created in 2002 and a member of the Research Institute of the University of Aveiro since 2003. It was working until the end of 2009 when, joining the <a href="http://ma.mat.ua.pt/" target="_blank">Mathematics and Applications</a> Research Unit, started in 2010 a new research center:</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><a href="http://cidma.mat.ua.pt/" target="_blank">CIDMA</a> - <b>Center for Research & Development in Mathematics and Applications</b></span></div>
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aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-38138699476977509792009-10-29T13:39:00.002+00:002009-11-07T19:37:13.373+00:00Seminar "Funções Especiais do Cálculo Fraccionário e a Função de Mittag-Leffler com Três Parâmetros"Em 30 de Outubro de 2009, (Departamento de Matemática, sala Sousa Pinto,<br>11:30-12:30)<br>Orador: Edmundo Capelas de Oliveira, Departamento de Matemática Aplicada,<br>Universidade de Campinas, Brasil.<br>Abstract: Apresentamos uma demonstração formal de um novo teorema envolvendo<br>a função de Mittag-Leffler com três parâmetros. Como consequência,<br>recuperamos resultados conhecidos e discutimos um corolário que emerge<br>naturalmente. Como uma aplicação obtemos a solução de uma equação<br>diferencial fracionária associada ao circuito elétrico RLC numa forma<br>fechada envolvendo uma função de Mittag-Leffler com dois parâmetros.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-47217419358751349892009-10-20T18:43:00.001+01:002009-10-20T18:43:20.463+01:00seminar "Eigenvalue statistics of non-Hermitian random"22 de Outubro de 2009 (Departamento de Matemática, sala Sousa Pinto,<br>10:00-11:00)<br>Boris Khoruzhenko, Queen Mary, University of London.<br>Abstract: In this talk I intend to discuss generic patterns of the<br>eigenvalue distribution in the complex plane for Gaussian random matrices<br>with no symmetry conditions imposed. For such matrices the mean eigenvalue<br>density and higher order correlation functions can be exactly reduced to<br>twopoint kernels. This makes it possible to analyse the eigenvalue<br>distribution in the strongly and weakly non-Hermitian limits of large matrix<br>size. No previous knowledge of random matrix theory will be assumed.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-89605716915330348012009-09-28T13:38:00.000+01:002009-09-28T13:37:27.927+01:00Seminar "Machine Learning and Neuroscience"<DIV dir=ltr align=left><B><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'">6 de Outubro, Departamento de Matemática, sala Sousa Pinto, 12:00-13:00<o:p></o:p></SPAN></B></DIV> <DIV class=Section1> <P class=MsoPlainText><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'"><o:p></o:p></SPAN></P> <P class=MsoPlainText><B><U><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'">Title:</SPAN></U></B><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'"> "Machine Learning and Neuroscience*<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'"><o:p></o:p></SPAN></P> <P class=MsoPlainText><B><U><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'">Speakers:</SPAN></U></B><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'"> <SPAN style="COLOR: #1f497d"><A href="http://mayor.dia.fi.upm.es/~Econcha/">Concha Bielza</A></SPAN> and <SPAN style="COLOR: #1f497d"><A href="http://www.sc.ehu.es/ccwbayes/members/pedro.htm">Pedro Larrañaga</A><SPAN class=471293512-28092009><FONT face=Arial color=#0000ff size=2> <FONT face=Calibri color=#000000 size=3> (</FONT></FONT></SPAN></SPAN></SPAN><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'">Universidad Politécnica de Madrid<SPAN class=471293512-28092009><FONT face=Arial color=#0000ff size=2>) </FONT></SPAN><o:p></o:p></SPAN></P> <P class=MsoPlainText><B><U><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'">Abstract<o:p></o:p></SPAN></U></B></P> <P class=MsoPlainText><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'"><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri','sans-serif'">Reverse-engineer the human brain has been identified by the National Academy of Engineering in 2009 as one of the <A href="http://www.engineeringchallenges.org/">14 challenges</A> that will influence science and technology for the next decade. This calls engineers and neuroscientists to work together. As participants of the <A href="http://bluebrain.epfl.ch/">Blue Brain international</A> project, in this talk we will describe a number of interesting problems where Machine Learning and Neuroscience can collaborate. They are briefly explained below.<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><STRONG>*A.*</STRONG> Define distinct populations of neurons in the brain cortex according to electrophysiological, molecular and morphological features. <o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US>This involves a supervised classification to distinguish between the common pyramidal neurons and interneurons or an unsupervised classification that discovers new groups of neurons inside these two classes, whose identity remains unclear.<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><STRONG>*B.*</STRONG> Construct models that can simulate the huge variety of dendritic morphology, the shape of brain cells. Dendritic branching is poorly understood due to be driven by a complex process but understanding how these trees are formed in the brain, we can learn more about their normal function and why they are often malformed in neurological diseases. Virtual trees can be created by measuring from real cells different parameters controlling branching behaviour. These measures can be modelled as statistical distributions and a global simulation model accounts for all the parameters together.<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><STRONG>*C.*</STRONG> Accurately reconstruct (semi-)automatically the 3D structure and connectivity of neurological tissue and label dendrites, axons and synapses unambiguously from electron microscope images that can provide a level of detail never reached before. It requires a huge amount of data to be processed (hundreds of terabytes) where machine learning and image processing techniques have to be combined.<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><STRONG>*D.*</STRONG> The technique of functional magnetic resonance imaging (fMRI) provides high-contrast images of neuronal activity indicating variations in oxygen consumption. The source data are 3D pixels (voxels) representing different intensities. With brain images, we can identify regions of the ventral-occipital cortex involved in visual processing of objects or faces and predict neural activation while identifying pictures and words. A visionary approach would be to use fMRI to diagnose neurodegenerative diseases like Alzheimer's. Difficulties arise due to the joint use of clinical data and spatial, temporal and function information.<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><STRONG>*E.*</STRONG> In the same spirit, Alzheimer's disease data and results from different -omics (genomics, proteomics, metabolomics) may be integrated into a single research to study the possible influences and interactions among them. These include DNA microarrays, SNP chips, mass spectrometry runs... that when combined, can open a major degree of knowledge discovery for the Alzheimer's disease.<o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><o:p></o:p></SPAN></P> <P class=MsoPlainText><SPAN lang=EN-US><STRONG>*F.*</STRONG> Identify and solve some classes of optimization problems in neuronal modelling. The difficulty of the problems may lead to use evolutionary computation based on machine learning models. We identify three classes: (1) neuronal parameter optimization, where we search for the parameter values that yield a desired electrical activity pattern in a neuron (or neuronal network); (2) neuronal model selection, where besides the parameters we also optimize some of the structural components of the model (useful when an accurate formulation of the neuronal model is unavailable); and (3) structural optimization problems in brain networks, where a network topology satisfying a number of constraints has to be found. Brain activity can be modelled as a dynamic process acting on a network, with brain areas, groups of neurons or individual cells as vertices. Its topology may be a key element in understanding the behaviour of the process.<o:p></o:p></SPAN></P> <P class=MsoNormal><SPAN lang=EN-US style="COLOR: #1f497d"><o:p> </o:p></SPAN></P></DIV>aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-43830586610194647302009-04-01T10:01:00.001+01:002009-04-01T10:01:18.803+01:00(online publication) Isoperimetric problems on time scales with nabla derivativesRicardo Almeida and Delfim F. M. Torres, Isoperimetric problems on time<br>scales with nabla derivatives, Journal of Vibration and Control 2009,<br>doi:10.1177/1077546309103268aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-66226064657136669162009-03-10T15:30:00.001+00:002009-03-10T15:30:05.356+00:00[Seminarios-CEOC] CONNECTED GRAPHS OF FIXED ORDER AND SIZE WITH MAXIMAL Q-INDEX: SOME SPECTRAL BOUNDS.Orador: Milica Anđelić, Universidade de Aveiro.<br>The Q−index (or spectral radius) of a simple graph is the largest eigenvalue of its signless Laplacian matrix. There are many results in the literature where, for some fixed class of graphs, all graphs whose index is maximal are identified. For connected graphs of fixed order and size this problem is not yet completely resolved (in contrast to the more general class when connectivity is not required). It is only known (for a long time) that the graphs with maximal Q−index in the former class (and the latter one) are the nested split graphs.<br>Focusing our attention on eigenvector techniques we got some new (lower and upper) bounds on the Q−index of nested split graphs.<br>2000 Mathematical Subject Classification: 05C50 <br>Key words and phrases: signless Laplacian spectrum, largest eigenvalue,<br>spectral radius, graph Q−index, spectral bounds.<br>13 de Março de 2009, 11:30 - 12:30 - Sala Sousa Pinto, DMat, Universidade de Aveiroaprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-47705808013752081872009-03-05T15:26:00.002+00:002009-03-05T15:26:55.627+00:00(dissertação de mestrado) Computação no Cálculo das VariaçõesA aluna Célia Teresa Ligeiro Mendes Pereira defendeu com sucesso a sua dissertação<br>orientada por João Pedro Cruz e Delfim F.M. Torres em 05/Março/2009.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-26640154109000235192009-03-03T14:42:00.001+00:002009-03-03T14:42:27.442+00:00(regular seminar) eXVisXML, uma ferramenta emblemática na análise documentalOradores: Pedro Henriques e Daniela da Cruz, Departamento de Informática,<br>Univ. do Minho<br>A análise de documentos estruturados, como é o caso dos documentos anotados<br>em XML, é fundamental para a sua compreensão que é requerida em todas as<br>tarefas de manutenção e reutilização. A manutenção é exigida no dia-a-dia<br>para corrigir defeitos, precaver problemas e adicionar funcionalidades. A<br>reutilização mostra-se relevante para economia de custos e rentabilização.<br>(...)<br>6 de Março de 2009, (Departamento de Matemática, sala Sousa Pinto,<br>11:30-12:30)aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-74069733242622702592009-02-26T10:08:00.001+00:002009-02-26T10:08:23.427+00:00(local seminar) Report on my recent visit to Acoustics ResearchEvgeny Lakshtanov, Univ. de Aveiro<br>Abstract: Recently I had a short scientific visit to the acoustics research<br>institute in Vienna. My objective was to communicate<br>with mathematicians who work closely with sound engineers in order to pick<br>up some statements of interesting mathematical problems. During this talk I<br>intend to share the results of this experience.<br>27 de Fevereiro de 2009, (Departamento de Matemática, sala Sousa Pinto,<br>11:30-12:30)aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-41629755054149334642009-02-17T09:44:00.001+00:002009-02-17T09:44:18.589+00:00(regular seminar) An asymptotic approach to conjugate time for bangbangOrador: Cristiana J. Silva, Univ. de Aveiro.<br>Resumo: We focus on the minimal time control problem for<br>single-input control-affine systems dx/dt = X(x) + u1 Y1(x) in Rn, where the<br>scalar control u1 fulfills the constraint |u1()|=<1. <br>We recall the concept of conjugate time for the bang-bang case in these<br>systems and propose an asymptotic approach, based on a penalized procedure,<br>which allows the application of the well-known results (theoretical and<br>practical) on the conjugate times for the smooth case into the bang-bang<br>case.<br>SEMINÁRIO - 20 de Fevereiro de 2009 (Departamento de Matemática, sala Sousa<br>Pinto, 11:30-12:30)aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-38919727155839822972009-01-29T12:08:00.001+00:002009-01-29T12:08:18.499+00:00(computer application) A Computational Approach to Essential and Nonessential Objective Functions in Linear Multicriteria OptimizationAgnieszka B. Malinowska and Delfim F. M. Torres, A Computational Approach to<br>Essential and Nonessential Objective Functions in Linear Multicriteria<br>Optimization, Application Type: Maple Worksheet; Publish date: December,<br>2008; Published by: Maplesoft, a division of Waterloo Maple Inc.<br><a href="http://www.maplesoft.com/applications/app_center_view.aspx?AID=2374">http://www.maplesoft.com/applications/app_center_view.aspx?AID=2374</a>aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-48123909736956630102009-01-28T21:47:00.001+00:002009-01-28T21:47:54.211+00:00The Control Theory Group (cotg)The Control Theory Group (cotg)<br>receives two new post-docs beginning March 1, 2009:<p>1) Dr. Ewa Pawluszewicz,<br>Assistant Professor at the Institute<br>of Mathematics of Bialystok Technical University, Poland,<br>Programa da FCT Ciência 2007,<br>(Concurso Internacional para a Contratação de 1000 Doutorados<br>para Instituições Científicas Portuguesas, referência C2007-UA/CEOC/03),<br>Title of the working programme: Control Theory on Time Scales.<br>Responsible: Delfim F. M. Torres<p>2) Dr. Ewa Girejko,<br>Post-doctoral Grant from FCT: SFRH/BPD/48439/2008<br>Title of the working programme:<br>Generalized differentials in dynamical inclusions<br>on time scales and optimal control<br>Responsible: Delfim F. M. Torresaprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-65592277373298117422009-01-25T11:48:00.000+00:002009-01-25T11:49:04.388+00:00(seminar) Calculus of Variations on Time Scales,Delfim F. M. Torres, Calculus of Variations on Time Scales,<br>Seminários de Matemática,<br>Seminário de Análise, Geometria e Física-Matemática,<br>Universidade do Minho, Campus de Gualtar, Braga,<br>22 de Janeiro de 2009.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-36873219776686891372009-01-20T10:10:00.001+00:002009-01-20T10:10:25.997+00:00(publication) Existence of solutions to a "water-oil" systemM. R. Sidi Ammi, Existence of solutions to a "water-oil" system, PAMM,<br>Volume 7, Issue 1 , Pages2040081 - 2040082 Copyright C 2007 WILEY-VCH Verlag<br>GmbH & Co. KGaA, Weinheim<br>(<a href="http://www3.interscience.wiley.com/journal/121560471/abstract">http://www3.interscience.wiley.com/journal/121560471/abstract</a>)<br>Published Online: Dec 12 2008 7:37AM<br>DOI: 10.1002/pamm.200701109aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-86505096528071960322009-01-13T16:55:00.001+00:002009-01-13T16:55:09.612+00:00invited talk: "Transversality conditions in the calculus of variations on time scales"Agnieszka B. Malinowska will give an invited talk at the conference PROGRESS<br>ON DIFFERENCE EQUATIONS 2009 (PODE09), CONFERENCE IN HONOUR OF PROFESSOR<br>GERASIMOS LADAS, entitled <br> Transversality conditions in the calculus of variations on time scales<br>PODE09 conference will take place in The Mathematical Research and<br>Conference Center in Bedlewo, Poland, from May 25th to May 29th 2009.<br>The conference will be locally supported by Stefan Banach International<br>Mathematical Center, and by Poznan University of Technology.<br>The proceedings of PODE09 will be published as a special issue of FASCICULI<br>MATHEMATICI.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-26369039611426052982009-01-13T12:20:00.001+00:002009-01-13T12:20:24.302+00:00invited talk at the conference PROGRESS ON DIFFERENCE EQUATIONS 2009Delfim F. M. Torres will give an invited talk at the conference PROGRESS ON<br>DIFFERENCE EQUATIONS 2009 (PODE09), CONFERENCE IN HONOUR OF PROFESSOR<br>GERASIMOS LADAS, entitled<br> Unifying the Unifiable Calculus of Variations on Time Scales<br>PODE09 conference will take place in The Mathematical Research and<br>Conference Center in Bedlewo, Poland, from May 25th to May 29th 2009.<br>The conference will be locally supported by Stefan Banach International<br>Mathematical Center, and by Poznan University of Technology. <br>The proceedings of PODE09 will be published as a special issue of FASCICULI<br>MATHEMATICI.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-15034794135954037462009-01-07T17:25:00.001+00:002009-01-07T17:25:50.759+00:00(Project) Approximate Resolution of Geometric Optimization Problems Project approved from "Acções Integradas Luso-Espanholas, 2009-2010"<br>coordinated by Belen Palop (Universidad de Valladolid) and António Leslie<br>Bajuelos (Universidade de Aveiro).aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-55816953923880752562008-12-18T11:51:00.001+00:002008-12-18T11:51:54.589+00:00CEOC obteve "Very Good" na avaliação de 2007Os resultados das várias UI&D portuguesas encontram-se aqui:<br> <a href="http://www.fct.mctes.pt/unidades/08/default.asp?p=1">http://www.fct.mctes.pt/unidades/08/default.asp?p=1</a><p>Foi realizada uma reunião do Conselho do CEOC no dia 17/Dezembro/2008, após<br>a recepção da avaliação da unidade.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-84510668684209623922008-12-16T14:30:00.004+00:002008-12-16T14:33:51.380+00:006th Iberian Workshop on Computational GeometryThe 6th IWCG intends to bring together, in an informal setting, researchers and students working in geometric computation. Its purpose is learning from each other of recent evolution on problems of common interest, leaving sufficient time for discussion and posing of new problems.<br/>
January 28-30,2009, Universidade de Aveiro, Portugal <a target=_blank, href="http://ceoc.mat.ua.pt/meetings/iwcg09/Welcome.html">more details...</a>aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-31154773861932858212008-12-05T16:45:00.000+00:002008-12-05T16:53:30.540+00:00Encontro CEOC-CIMA 2008Mais detalhes em:<br><a href="http://ceoc.mat.ua.pt/meetings/ceoc-cima2008/index.html">http://ceoc.mat.ua.pt/meetings/ceoc-cima2008/index.html</a>aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-41670741702912244142008-12-02T09:25:00.000+00:002008-12-02T09:26:00.960+00:00Lecture at foreigner university: Scattering by obstaclesEvgeny Lakshtanov will give an invited lecture in Mathematics Institut in<br>Munique.<br><a href="http://www.mathematik.uni-muenchen.de/~lerdos/os0809/">http://www.mathematik.uni-muenchen.de/~lerdos/os0809/</a>aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-47906628149295315862008-11-27T11:28:00.001+00:002008-11-27T11:28:11.726+00:00Recent publications and communications from Tatiana Tchemisova (CEOC Member)Publications:<br>1) Kostyukova O.I., Tchemisova T.V, Yermalinskaya S.A. <br>{\it On One Optimality Criterion for the Problem of Convex Semi-Infinite<br>Programming}, proceedings of International Scientific Conference "X<br>Belarusian Mathematical Conference", Minsk, Belarus, 3-7 of November 2008,<br>pp. <br>101-102 (proceedings with referee).<br>2)Ozogur-Akyuz S., Akteke-Ozturk B., Tchemisova T., and Weber G.-W., {\it<br>New Optimization Methods in Data Mining}, proceedings of International<br>Conference "Operations Research 2008", Augsburg, Germany, September 3-5,<br>2008,(Accepted for proceedings with referee).<br>3)Kostyukova O.I., Tchemisova T.V., {\it Sufficient Optimality Conditions<br>for Convex Semi-Infinite Programming}, accepted to publication in Special<br>Issue of "Optimization Methods and Software", 2008.<br>4) Tchemisova T.V., Yermalinskaya S.A., {\it Algorithm of Determination of<br>the Orders of Immobile Indices and Implicit Optimality Criterion for the<br>Problems of Convex Semi-Infinite Programming}, proceedings of the<br>International Conference "Dynamic Systems: Stability, Control,<br>Optimization", devoted to 90-th anniversary of academician E.A.Barbashin,<br>p.165-166, Minsk, Belarus, 29<br>September-4 October, 2008 (proceedings with referee), pp.165-166.<p>Communications:<br>1)Kostyukova O.I., Tchemisova T.V, Yermalinskaya S.A. {\it On One Optimality<br>Criterion for the Problem of Convex Semi-Infinite Programming},<br>International Scientific Conference "X Belarusian Mathematical Conference",<br>Minsk, Belarus, 3-7 of November 2008.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-83161899182527531122008-11-25T16:12:00.002+00:002008-11-27T18:09:19.373+00:00(regular seminar) Necessary optimality conditions and implicit functionOrador: ARAM ARUTYUNOV, Peoples Friendship University of Russia, Moscow.<br><br>Resumo: The talk consists of two parts. The first part is devoted to the abstract minimization problem with constraints, which is called the mathematical programming problem. In the second part we discuss local properties of smooth nonlinear mappings in a neighborhood of an abnormal point. The problems that are studied in this talk (of course, in addition to their extremal nature) are united by the fact that we are mainly interested in studying the so-called abnormal or nonlinearized problems.aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-79340130020701071312008-11-21T11:01:00.001+00:002008-11-21T11:01:41.534+00:00Computer Application available from the Maple Application CentreTitle: Computing ODE symmetries as abnormal variational symmetries.<br>Authors: Paulo D. F. Gouveia and Delfim F. M. Torres <br>Application Type: Maple Worksheet Publish date: November, 2008<br>URL:<br><a href="http://www.maplesoft.com/applications/app_center_view.aspx?AID=2326&CID=1&SCID=94">http://www.maplesoft.com/applications/app_center_view.aspx?AID=2326&CID=1&SC<br>ID=94</a>aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.comtag:blogger.com,1999:blog-286962626760808544.post-18725789611029139752008-11-19T17:04:00.001+00:002008-11-19T17:04:53.367+00:00(local seminar) Rotas Seguras usando a 2-coberturaInês Pereira deMatos, Estudante de Doutoramento, Universidade de Aveiro.<br>Resumo: Dados n discos de raio r no plano, que representam<br>antenas, radares, sensores ou outros equipamentos de<br>vigilância com alcance limitado. Um ponto no plano está<br>2-coberto se estiver coberto por pelo menos dois destes discos.<br>Na sequência da importância prática desta classe de<br>problemas e dos resultados obtidos para minimizar o alcance<br>dos equipamentos de vigilância para 2-cobrir um ponto, apresentaremos<br>alguns resultados relacionados com o cálculo do<br>alcance mínimo para a 2-cobertura de um segmento de recta,<br>uma linha poligonal, um polígono arbitrário e um conjunto<br>de pontos no plano. Como último caso, analisaremos como<br>encontrar a melhor rota segura (2-coberta) entre duas localizações<br>(vértices) num grafo não dirigido, grafo esse que<br>representa um mapeamento de estradas.<br>21 de Novembro de 2008 (Departamento de Matemática, sala Sousa Pinto,<br>11:00-12:00)aprender matemática com exemplos do budismohttp://www.blogger.com/profile/00551190013441648062noreply@blogger.com