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[期刊论文] 作者：Tiansi Zhang,
来源：应用数学(英文) 年份：2013
Homoclinic bifurcation with one orbit flip, two inclination flips and resonance in the tangent directions of homoclinic orbit is considered. By studying the ass...
[期刊论文] 作者：Xiaomei Ren,Tiansi Zhang,
来源：应用数学与应用物理(英文) 年份：2017
In this paper, a SEIR model with ratio-dependent transmission rate in the form ?is studied and the basic reproduction number which determines the disease’s ext...
[期刊论文] 作者：Minmin Zhou,Tiansi Zhang,
来源：应用数学与应用物理(英文) 年份：2019
In this paper, we investigate the global stability of an SEIR (Susceptible-Exposed-Infected-Remove) epidemic model with infectious force under intervention stra...
[期刊论文] 作者：Jie Xu,Tiansi Zhang,
来源：应用数学与应用物理(英文) 年份：2019
The article investigates a SIQR epidemic model with specific nonlinear incidence rate and stochastic model based on the former, respectively. For deterministic...
[期刊论文] 作者：Tiansi Zhang,Deming Zhu,
来源：应用数学(英文) 年份：2013
One orbit flip and two inclination flips bifurcation is considered with resonant principal eigenvalues. We introduce a local active coordinate system to establi...
[期刊论文] 作者：Huimiao Dong,Tiansi Zhang,
来源：应用数学(英文) 年份：2021
In this paper, external bifurcations of heterodimensional cycles connecting three saddle points with one orbit flip, in the shape of “∞”, are studied in thre...
[期刊论文] 作者：Tiansi ZHANG,Deming ZHU,
来源：黑龙江科技学院学报 年份：2015
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
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