Segregation systems and their singular perturbations arise in different areas: particle anihilation, population dynamics, material sciences. In this article we study the elliptic and parabolic limits of a nonvariational singularly perturbed problem. Existence and regularity properties of solutions and their limits are obtained.

中文翻译：

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非散度系统隔离问题的解的几何

隔离系统及其奇异摄动出现在不同的领域：粒子灭，种群动态，材料科学。在本文中，我们研究非变分奇摄动问题的椭圆和抛物极限。得到了解的存在性和规则性及其极限。