Titlebook: Qualitative Theory of Planar Differential Systems; Freddy Dumortier,Jaume Llibre,Joan C. Artés Textbook 2006 Springer-Verlag Berlin Heidel

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ng on how design teams cope with diminishing resources in diverse geographic and climatic conditions. The featured projects demonstrate measurable reductions in both construction and operating costs through innovative designs that utilise the ecology of a selected site in a positive way. A library d

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Textbook 2006d Q are C functions de?ned on an open subset U of R , with ? r=1,2,...,?,?.AsusualC standsforanalyticity.Weputspecialemphasis onto polynomial di?erential systems, i.e., on systems (0.1) where P and Q are polynomials. Instead of talking about the di?erential system (0.1), we frequently talk about its

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0172-5939 r numerical experiments on differential equations) availableOur aim is to study ordinary di?erential equations or simply di?erential s- tems in two real variables x ? = P(x,y), (0.1) y? = Q(x,y), r 2 where P and Q are C functions de?ned on an open subset U of R , with ? r=1,2,...,?,?.AsusualC stands

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