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20002026
most citedExact analytical solutions of the Susceptible-Infected-Recovered (SIR) epidemic model and of the SIR model with equal death and birth rates

524 citations · 2.1k across the 39 of their papers we have counts for

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Showing 2000 · hep-thShow all

2 papers · 2 filters

hep-th2000★ 5 cited

Rotational Perturbations in Neveu-Schwarz-Neveu-Schwarz String Cosmology

Chiang-Mei Chen, T. Harko, M. K. Mak

First order rotational perturbations of the flat Friedmann-Robertson-Walker (FRW) metric are considered in the framework of four dimensional Neveu-Schwarz-Neveu-Schwarz (NS-NS) str…

hep-th2000★ 51 cited

Bianchi Type I Cosmologies in Arbitrary Dimensional Dilaton Gravities

Chiang-Mei Chen, T. Harko, M. K. Mak

We study the low energy string effective action with an exponential type dilaton potential and vanishing torsion in a Bianchi type I space-time geometry. In the Einstein and string…