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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 139
Issue DateTitleAuthor(s)TypeAccess Type
2-Mar-2020Global solution of the initial value problem for the focusing Davey-Stewartson II systemLakshtanov, Evgeny; Vainberg, BorisarticleopenAccess
Mar-2020Some new aspects of main eigenvalues of graphsAbreu, Nair; Cardoso, Domingos M.; França, Francisca A. M.; Vinagre, Cybele T. M.articleopenAccess
7-Apr-2020Inventory models with reverse logistics for assets acquisition in a liquefied petroleum gas companyLopes, Cristina; Correia, Aldina; Silva, Eliana Costa e; Monteiro, Magda; Lopes, Rui BorgesarticleopenAccess
2020A multi-model methodology for forecasting sales and returns of liquefied petroleum gas cylindersCorreia, A.; Lopes, C.; Costa e Silva, E.; Monteiro, M.; Borges Lopes, R.articlerestrictedAccess
3-Jun-2020An exploration of locally spherical regular hypertopeFernandes, Maria Elisa; Leemans, Dimitri; Weiss, Asia IvićarticleembargoedAccess
1-Apr-2020On the spectra of some g-circulant matrices and applications to nonnegative inverse eigenvalue problemAndrade, Enide; Arrieta, Luis; Manzaneda, Cristina; Robbiano, MaríaarticleopenAccess
1-Jan-2020A lower bound for the energy of hypoenergetic and non hypoenergetic graphsAndrade, Enide; R. Carmona, Juan; Infante, Geraldine; Robbiano, MaríaarticleopenAccess
Jan-2020A survey on graphs with convex quadratic stability numberCardoso, Domingos M.articlerestrictedAccess
Jan-2020Graphs with clusters perturbed by regular graphs: Aα-spectrum and applicationsCardoso, Domingos M.; Pastén, Germain; Rojo, OscararticleopenAccess
Dec-2019Injective edge coloring of graphsCardoso, Domingos M.; Cerdeira, J. Orestes; Dominic, Charles; Cruz, J. PedroarticleopenAccess
Sep-2019Suppliers selection problem with quantity discounts and price changes: a heuristic approachRodrigues, Filipe; Requejo, CristinaarticlerestrictedAccess
30-Sep-2019A computational comparison of compact MILP formulations for the zero forcing numberAgra, Agostinho; Cerdeira, Jorge Orestes; Requejo, CristinaarticleembargoedAccess
19-Sep-2019Comparing techniques for modelling uncertainty in a maritime inventory routing problemRodrigues, Filipe; Agra, Agostinho; Christiansen, Marielle; Hvattum, Lars Magnus; Requejo, CristinaarticleembargoedAccess
1-Jan-2020On the energy of singular and non singular graphsAndrade, Enide; Carmona, Juan R.; Poveda, Alex; Robbiano, MaríaarticleopenAccess
1-Mar-2020Extremal graphs for Estrada indicesAndrade, Enide; Lenes, Eber; Mallea-Zepeda, Exequiel; Robbiano, María; Rodríguez Z., JonnathanarticleembargoedAccess
1-Jul-2019More on geometry of Krein space C-numerical rangeGuterman, Alexander; Lemos, Rute; Soares, GraçaarticleopenAccess
22-Oct-2019String C-group representations of alternating groupsFernandes, Maria Elisa; Leemans, DimitriarticleopenAccess
30-Sep-2019An overview of (k,t)-regular sets and their applicationsCardoso, Domingos M.articlerestrictedAccess
17-Sep-2019Faithful permutation representations of toroidal regular mapsFernandes, Maria Elisa; Piedade, Cláudio AlexandrearticleembargoedAccess
18-Sep-2019AAD: breaking the primal barrierGoloubentsev, Dmitri; Lakshtanov, EvgenyarticleembargoedAccess
Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 139