Unicity and existence of bounded solutions are interesting results not just for PDE (Partial Differential Equations) but can also be extended to minimization problems in Calculus of Variations. These results also have a very interesting behavior. The reasoning and research involved in these theoretical results were part of an artistic process in performance art: the performance piece “On Self Codes”. This paper is devoted to the development of possible connections between mathematics research in Calculus of Variations and performance art through a case study. How can one construct a performance art piece inspired on specific research within mathematics, without translation and using intersubjectivities instead? How can we relate two different fields without using them hierarchically? Can we agree on affirming that this type of work is a statement regarding transdisciplinarity, or it maps the ways in which a contemporary body of work can be shaped today? Are these two features incompatible? These are some of the questions that originated this paper.

中文翻译：

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关于自我密码：数学和表演艺术中的案例研究

唯一性和有界解的存在不仅对PDE（偏微分方程）是有趣的结果，而且还可以扩展到微分学中的最小化问题。这些结果也具有非常有趣的行为。这些理论结果涉及的推理和研究是表演艺术艺术过程的一部分：表演作品“ On Self Codes”。本文通过案例研究致力于变奏微积分中的数学研究与表演艺术之间可能的联系的发展。一个人如何才能构造出一部受到数学领域特定研究启发的行为艺术作品，没有翻译，而是使用主体间性？我们如何在不按层次使用它们的情况下关联两个不同的字段？我们是否可以同意肯定这种类型的作品是关于跨学科性的陈述，还是可以描绘出当今塑造现代作品的方式？这两个功能不兼容吗？这些是本文提出的一些问题。