Sunday, June 14, 2026

2026-366

The network below shows the contacts in a small population, modelled with the SI epidemic model.

Given a transmission rate β = 0.1, what is the characteristic time τ of the epidemic?

  1. τ = 4
  2. τ = 5
  3. τ ≈ 2.86
  4. τ = 0.5
  5. None of the above
Original idea by: Gustavo P. C. P. da Luz
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