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20122020
most citedAnalytic integrability of the Bianchi Class A cosmological models with 0<= k<1

4 citations · 4 across the 2 of their papers we have counts for

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math.DS2019

Quadratic Planar Differential Systems with Algebraic Limit Cycles via Quadratic Plane Cremona Maps

Maria Alberich-Carramiñana, Antoni Ferragut, Jaume Llibre

In this paper we show how we can transform quadratic systems into new quadratic systems after some kind of birational transformations, the quadratic plane Cremona maps. We afterwar…