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arXiv 2210.09354math.AP
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波流形的Lax容许域分解及其在解黎曼问题中的应用

Decomposition of the Wave Manifold into Lax Admissible Regions and its Application to the Solution of Riemann Problems

Cesar S. Eschenazi, Wanderson J. Lambert, Marlon M. López-Flores, Dan Marchesin, Carlos F. B. Palmeira

摘要:

我们利用一个三维流形来解决黎曼问题,所产生的系统的两个守恒律与二次通量函数。这个流形中的点代表潜在的冲击波,因此它的名字叫波流形。该流形根据Lax容许性不等式被细分为区域。最后,我们提出了解决方案的黎曼问题的各种情况下,并表现出连续性相对于$L$和$R$数据,尽管该系统不是严格的双曲。尽管存在一个椭圆形区域,但该流形的使用使解正则化。

英文摘要:

We utilize a three-dimensional manifold to solve Riemann Problems that arise from a system of two conservation laws with quadratic flux functions. Points in this manifold represent potential shock waves, hence its name wave manifold. This manifold is subdivided into regions according to the Lax admissibility inequalities for shocks. Finally, we present solutions for the Riemann Problems for various cases and exhibit continuity relative to $L$ and $R$ data, despite the fact that the system is not strictly hyperbolic. The usage of this manifold regularizes the solutions despite the presence of an elliptic region.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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