We study extensions of the Election Isomorphism problem, focused on the existence of isomorphic subelections. Specifically, we propose the Subelection Isomorphism and the Maximum Common Subelection problems and study their computational complexity, mostly showing intractability. Additionally, we show experiments indicating that our problems provide meaningful insights into the nature of a number of statistical models of elections.

翻译：我们研究选举自成体系问题的延伸问题,重点研究存在无形态次选举的问题。 具体地说,我们提出次选举自成体系问题和最大常见的次选举问题,并研究其计算复杂性,大多表现出可吸引性。 此外,我们展示了实验,表明我们的问题为一些选举统计模式的性质提供了有意义的洞察力。