Dynamical Analysis of a Stage-Structured Model for Lyme Disease with Two Delays
Canadian mathematical bulletin, Tome 59 (2016) no. 2, pp. 363-380
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In this paper, a nonlinear stage-structured model for Lyme disease is considered. The model is a system of diòerential equations with two time delays. We derive the basic reproductive rate ${{R}_{0}}\left( {{\tau }_{1}},\,{{\tau }_{2}} \right)$ . If ${{R}_{0}}\left( {{\tau }_{1}},\,{{\tau }_{2}} \right)\,<\,1$ , then the boundary equilibrium is globally asymptotically stable. If ${{R}_{0}}\left( {{\tau }_{1}},\,{{\tau }_{2}} \right)\,>\,1$ , then there exists a unique positive equilibrium whose local asymptotic stability and the existence of Hopf bifurcations are established by analyzing the distribution of the characteristic values. An explicit algorithm for determining the direction of Hopf bifurcations and the stability of the bifurcating periodic solutions is derived by using the normal form and the center manifold theory. Some numerical simulations are performed to confirm the correctness of theoretical analysis. Finally, some conclusions are given.
Mots-clés :
34D20, disease, stage-structure, time delay, Lyapunov functional stability, Hopf bifurcation
Li, Dan; Ma, Wanbiao. Dynamical Analysis of a Stage-Structured Model for Lyme Disease with Two Delays. Canadian mathematical bulletin, Tome 59 (2016) no. 2, pp. 363-380. doi: 10.4153/CMB-2015-063-x
@article{10_4153_CMB_2015_063_x,
author = {Li, Dan and Ma, Wanbiao},
title = {Dynamical {Analysis} of a {Stage-Structured} {Model} for {Lyme} {Disease} with {Two} {Delays}},
journal = {Canadian mathematical bulletin},
pages = {363--380},
year = {2016},
volume = {59},
number = {2},
doi = {10.4153/CMB-2015-063-x},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-063-x/}
}
TY - JOUR AU - Li, Dan AU - Ma, Wanbiao TI - Dynamical Analysis of a Stage-Structured Model for Lyme Disease with Two Delays JO - Canadian mathematical bulletin PY - 2016 SP - 363 EP - 380 VL - 59 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-063-x/ DO - 10.4153/CMB-2015-063-x ID - 10_4153_CMB_2015_063_x ER -
%0 Journal Article %A Li, Dan %A Ma, Wanbiao %T Dynamical Analysis of a Stage-Structured Model for Lyme Disease with Two Delays %J Canadian mathematical bulletin %D 2016 %P 363-380 %V 59 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2015-063-x/ %R 10.4153/CMB-2015-063-x %F 10_4153_CMB_2015_063_x
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