Vanishing Corrections for the Position in a Linear Model of FKPP Fronts
Vanishing Corrections for the Position in a Linear Model of FKPP Fronts
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FKPP 锋面线性模型中位置的消失修正
DOI:
10.1007/s00220-016-2790-9
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发表时间:
2016
影响因子:
2.4
通讯作者:
Berestycki J
中科院分区:
文献类型:
--
作者:
Berestycki J
Take the linearised FKPP equationwith boundary conditionh(m(t),t) = 0. Depending on the behaviour of the initial conditionh0(x) =h(x, 0) we obtain the asymptotics—up to ao(1) termr(t)—of the absorbing boundarym(t) such thatexists and is non-trivial. In particular, as in Bramson’s results for the non-linear FKPP equation, we recover the celebratedcorrection for initial conditions decaying faster thanfor some. Furthermore, when we are in this regime, the main result of the present work is the identification (to first order) of ther(t) term, which ensures the fastest convergence to. Whenh0(x) decays faster thanfor some, we show thatr(t) must be chosen to be, which is precisely the term predicted heuristically by Ebert–van Saarloos (Phys. D Nonlin. Phenom. 146(1): 1–99, 2000) in the non-linear case (see also Mueller and Munier Phys Rev E 90(4):042143, 2014, Henderson, Commun Math Sci 14(4):973–985, 2016, Brunet and Derrida Stat Phys 1-20, 2015). When the initial condition decays asfor some, we show that even though we are still in the regime where Bramson’s correction is, the Ebert–van Saarloos correction has to be modified. Similar results were recently obtained by Henderson CommunMath Sci 14(4):973–985, 2016 using an analytical approach and only for compactly supported initial conditions.
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--
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DOI:
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发表时间:
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期刊:
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