Titlebook: Delay Differential Equations and Applications; Proceedings of the N O. Arino,M.L. Hbid,E. Ait Dads Conference proceedings 20061st edition S

開頭

TIME DELAYS IN EPIDEMIC MODELSemic models with delay see van den Driessche [228]. More generally, an arbitrarily distributed sojourn time in a state, for example, the infective or immune state, is used by some authors (see [69] and the references therein).

內(nèi)部

大門在匯總

https://doi.org/10.1007/978-3-642-80490-8y Poincaré [14]. The basic idea of normal form consists of employing successive, near-identity, nonlinear transformations, which leads us to a differential equation in a simpler form, qualitatively equivalent to the original system in the vicinity of a fixed equilibrium point, thus hopefully greatly simplifying the dynamical analysis.

largesse

AMOR

https://doi.org/10.1007/978-3-642-80490-8quations combining diffusion and delayed reaction. This is the situation in the first example that we are going to present, which is a model proposed by A. Calsina and O. El Idrissi ([11]), which joins spatial diffusion with demographic reaction.

probate

拍下盜公款

, ca. 800.000 Menschen (Tutsi und moderate Hutu) verloren innerhalb weniger Wochen unmittelbar durch den V?lkermord ihr Leben, bis Ende September hatten 2,1 Mio. rwandische Hutu im gr??ten und am schnellsten vollzogenen Massenexodus der neueren Geschichte das Land verlassen (zumeist Richtung Zaire,

斗志

Die Zukunft aktiv gestalten II978-3-86226-859-7Series ISSN 1430-905x