3 documents found, page 1 of 1
Rigid centres on the center manifold of tridimensional differential systems
Mahdi, Adam; Pessoa, Claudio [UNESP]; Ribeiro, Jarne D.Made available in DSpace on 2022-04-29T08:33:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Motivated by the definition of rigid centres for planar differential systems, we introduce the study of rigid centres on the center manifolds of differential systems on ℝ3. On the plane, these centres have been extensively studied and several interesting results have been obtained. We present results th...
Potential health and economic impacts of dexamethasone treatment for patients w...
Águas, Ricardo; Mahdi, Adam; Shretta, Rima; Horby, Peter; Landray, Martin; White, Lisa; Arifi, Fatima; Zhumalieva, Chynar; Lubis, Inke N. D.Made available in DSpace on 2021-06-25T10:52:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-01; Li Ka Shing Foundation; Medical Research Council; National Institute for Health Research; Nuffield College, University of Oxford; Dexamethasone can reduce mortality in hospitalised COVID-19 patients needing oxygen and ventilation by 18% and 36%, respectively. Here, we estimate the potential number of li...
A hybrid symbolic-numerical approach to the center-focus problem
Mahdi, Adam; Pessoa, Claudio [UNESP]; Hauenstein, Jonathan D.Made available in DSpace on 2018-12-11T17:10:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-09-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); We propose a new hybrid symbolic-numerical approach to the center-focus problem. The method allowed us to obtain center conditions for a three-dimensional system of differe...