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The Dynamics of One-Dimensional Quasi-Affine Maps
Jonathan Hoseana
We study the dynamics of the one-dimensional quasi-affine map , providing a complete description of the map's periodic points, and of the…
Combating New COVID-19 Variants in Indonesia: Is Accelerating Four-Dose Vaccinations Sufficient?
Benny Yong, Jonathan Hoseana, Livia Owen
As new COVID-19 variants continue to emerge globally, we develop an SISI-type mathematical model to determine whether the transmission risks arising when such a new variant enters…
Codimension-Two Bifurcations of an SIR-Type Model for COVID-19 and Their Epidemiological Implications
Livia Owen, Jonathan Hoseana, Benny Yong
We study the codimension-two bifurcations exhibited by a recently-developed SIR-type mathematical model for the spread of COVID-19, as its two main parameters -- the susceptible in…
From Pandemic to a New Normal: Strategies to Optimise Governmental Interventions in Indonesia Based on an SVEIQHR-Type Mathematical Model
Benny Yong, Jonathan Hoseana, Livia Owen
There are five different forms of intervention presently realised by the Indonesian government in an effort to end the COVID-19 pandemic: vaccinations, social restrictions, tracing…
A Design of Governmental Policies for the Eradication of COVID-19 in Jakarta Using an SIR-Type Mathematical Model
Benny Yong, Jonathan Hoseana, Livia Owen
Using a discretised version of our recently-developed SIR-type mathematical model for the spread of COVID-19, we construct a design of governmental policies for the eradication of…
The Akiyama Mean-Median Map Has Unbounded Transit Time and Discontinuous Limit
Jonathan Hoseana
Open conjectures state that, for every , the orbit of the mean-median recursion $$x_{n+1}=(n+1)\cdot\mathrm{median}\left(x_1,\ldots,x_{n}…