Uniqueness of Self-similar Solutions to Smoluchowski’s Coagulation Equations for Kernels that are Close to Constant
Uniqueness of Self-similar Solutions to Smoluchowski’s Coagulation Equations for Kernels that are Close to Constant
复制标题
接近常数的核的 Smoluchowski 凝固方程自相似解的唯一性
DOI:
10.1007/s10955-014-1070-3
复制
发表时间:
2013
影响因子:
1.6
通讯作者:
Juan J. L. Velázquez
中科院分区:
文献类型:
--
作者:
B. Niethammer;Juan J. L. Velázquez
We consider self-similar solutions to Smoluchowski’s coagulation equation for kernels $$K=K(x,y)$$K=K(x,y) that are homogeneous of degree zero and close to constant in the sense that $$\begin{aligned} -\varepsilon \le K(x,y)-2 \le \varepsilon \Big ( \Big (\frac{x}{y}\Big )^{\alpha } + \Big (\frac{y}{x}\Big )^{\alpha }\Big ) \end{aligned}$$-ε≤K(x,y)-2≤ε((xy)α+(yx)α)for $$\alpha \in [0,1)$$α∈[0,1). We prove that self-similar solutions with given mass are unique if $$\varepsilon $$ε is sufficiently small which is the first such uniqueness result for kernels that are not solvable. Our proof relies on a contraction argument in a norm that measures the distance of solutions with respect to the weak topology of measures.
影响因子:
2.4
作者:
B. Niethammer;J. J. L. Veláquez
通讯作者:
J. J. L. Veláquez