2 citations · 2 across the 3 of their papers we have counts for
3 papers
Modeling the prevalence of Schistosoma mansoni infection in an endemic population
Roberta Oliveira-Prado, Máderson Alvares de Souza Cabral, Sylvie Oliffson Kamphorst +3
We investigate theoretically if treatment alone can reduce the schistosomiasis's prevalence in an infected population, in a long-lasting sustainable way. We use a non-linear system…
Generic Oval Billiards
M. J. Dias Carneiro, S. Oliffson Kamphorst, S. Pinto-de-Carvalho
In this paper we show that, under certain generic conditions, billiards on ovals have only a finite number of periodic orbits, for each period, all non-degenerate and at least one…
The First Birkhoff Coefficient and the Stability of 2-Periodic Orbits on Billiards
Sylvie Oliffson Kamphorst, Sonia Pinto de Carvalho
In this work we address the question of proving the stability of elliptic 2-periodic orbits for strictly convex billiards. Eventhough it is part of a widely accepted belief that el…