标题： 反应扩散介质中具有差异对流的漂移孤立波 显示英文标题

标题： Drifting solitary waves in a reaction-diffusion medium with differential advection

摘要： 在存在自催化、扩散和对称性破缺（微分）平流的情况下，孤立波的传播正在被研究。 重点是通过较低自催化激活剂反应速率下的对流不稳定性形成的漂移（随平流传播）脉冲，即 平流流动克服了快速兴奋并诱导出漂移流体行为。 通过一个最小案例模型的空间动力学分析，我们展示了这些脉冲的特性和组织方式。 这些见解为简单反应-扩散-平流模型中局部传输的一般理解奠定了基础，从而为潜在的化学和生物应用提供了背景。 显示英文摘要

摘要： Propagation of solitary waves in the presence of autocatalysis, diffusion, and symmetry breaking (differential) advection, is being studied. The focus is on drifting (propagating with advection) pulses that form via a convective instability at lower reaction rates of the autocatalytic activator, i.e. the advective flow overcomes the fast excitation and induces a drifting fluid type behavior. Using spatial dynamics analysis of a minimal case model, we present the properties and the organization of such pulses. The insights underly a general understanding of localized transport in simple reaction-diffusion-advection models and thus provide a background to potential chemical and biological applications.