$L_1$中与非结构扩散种群相关的半群的性质
Properties of the Semigroup in $L_1$ Associated with Age-Structured Diffusive Populations
摘要:
在$L_1$ -背景下研究了年龄结构扩散种群的线性半群.一个完整的确定其生成器给出了详细的频谱信息,这意味着,特别是,一个异步的指数增长性的半群。此外,从扩散部分继承的正则化效应被利用来导出半群的其他性质。
英文摘要:
The linear semigroup associated with age-structured diffusive populations is investigated in the $L_1$-setting. A complete determination of its generator is given along with detailed spectral information that imply, in particular, an asynchronous exponential growth of the semigroup. Moreover, regularizing effects inherited from the diffusion part are exploited to derive additional properties of the semigroup.
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