William Roberto Luiz Silva Pereira

3 Questions 9 Answers 0 Followers

Questions related from William Roberto Luiz Silva Pereira

A mathematical challenge: bridging the gap between two bio-ecological theories

I have some individual interest to understand a little bit more these two phenomena, because the apparent mathematical similarities between them, and because some particularities, too. The...

06 June 2017 1,399 4 View

A mathematical trouble. Someone could calculate this second derivative?

Not so complicated. Hizimura & Matsuyama (1999) suggested a model to characterize and describe eruptions (crashes) in population dynamics. I'm testing some hypothesis and I'd like to test the...

01 January 2017 4,696 2 View

Does anyone know a growth equation (logistic-like) where there is a parameter that control a sharp fall (crash)?

Logistic growth describes somes phenomena (for example, population growth, bubble markets, tumor growth, etc) but the current models don't consider an abrupt fall ("crash"). Tsoularis et al (1997)...

06 June 2016 8,397 9 View