Valves
发表于 2025-3-23 12:58:34
Female Midwives and the Medical Profession,lymer science, colloidal and aerosol physics, atmospheric science, astrophysics and the kinetics of phase transformations in binary alloys . The common link in all these examples is that they can be considered as a system of a large number of clusters of particles that can coagulate
持续
发表于 2025-3-23 17:47:37
Seeing and the Experience of Pictures,te the Banach space of continuous functions ψ: [−h, 0] →R. with the norm., where |•| is any convenient norm in R.. For H>0, let C. designate the open ball in C for which ||ψ||<H. It is assumed that F:[0,∞) x C.→R. is continuous and takes bounded sets into bounded sets.
LUT
发表于 2025-3-23 20:30:45
Seeing and the Experience of Pictures,riable t. Equation (1) can be interpreted as a model for the spread of some infectious diseases with periodic contact rate (see Cooke and Kaplan ). In this case, x(t) means the proportion of infectives in the population at time t; f(t,x(t)) means the proportion of new infectives per unit time (f(
苦涩
发表于 2025-3-23 22:29:37
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HUSH
发表于 2025-3-24 04:25:34
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vasospasm
发表于 2025-3-24 07:14:21
Nancy Meyers and “Popular Feminism”heory of ordinary and partial differential equations. This statement is equally valid for retarded functional differential equations, but here the variation — of — constants formula shows a peculiar feature. Indeed, in the book of . we find that the formula involves the so-called fundamental mat
种族被根除
发表于 2025-3-24 14:12:18
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擦试不掉
发表于 2025-3-24 15:23:34
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syring
发表于 2025-3-24 23:04:39
Femininity Repackaged: Postfeminism and e) which admit a compact attractor i.e. a compact connected invariant set A ⊂ X which is uniformly asymptotically stable and attracts all points in X . In this situation understanding the dynamic of the semigroup T(t) may be considered equivalent to the description of the flow on A. Since from ab
Leaven
发表于 2025-3-24 23:48:20
if f(x,.) is uniformly coercive, i.e.. uniformly in x ∈ ℝ, then there exists s. ∈ ℝ such that the equation . has exactly zero, one or two T-periodic solutions according to s < s., s = s. or s > s.. The aim of this note is to complete the result by getting a fairly complete picture of the trajectoir