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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Geometric Singular Perturbation Theory and Traveling Pulses with Monotone Tails in a Diffusive Rosenzweig MacArthur Model
扩散 罗森茨威格麦克阿瑟模型 几何奇异摄动理论 单调尾巴行进脉冲
2023/5/5
In this talk, we first briefly review history of the geometric singular perturbation theory, then talk about the traveling pulses for a diffusive Rosenzweig MacArthur model. We show the existence of t...
Perturbation theory for a stochastic process with Ornstein-Uhlenbeck noise
Noise diffusion annihilation/creationo perators
2010/4/8
The Ornstein-Uhlenbeck process may be used to generate a noise signal with a finite correlation time. If a one-dimensional stochastic process is driven by such a noise source, it may be analysed by so...
The Wigner Band Random Matrix Model: Studied from the View Point
of a Generalization of Brillouin- Wigner Perturbation Theory
generalization of perturbation theory
energy eigenfunction local spectral density of states
2007/8/15
2001Vol.35No.2pp.143-150DOI:
The Wigner Band Random Matrix Model: Studied from the View Point
of a Generalization of Brillouin- Wigner Perturbation Theory
WANG Wen-Ge
De...
On the structure of systematic perturbation theory with unstable fields
perturbation theory unstable fields
2010/11/2
Discussed is the structure of non-trivial counterterms that occur in the systematic gauge-invariant perturbation theory with unstable fields introduced in [hep-ph/9802307].