稠密域、对称算子与谱三元组
Dense domains, symmetric operators and spectral triples
摘要：
本文是关于削弱无界卡斯帕罗夫模（或谱三元组）的标准定义的错误尝试。我们提出了反例索赔文献中的Fredholm模块可以从这些较弱的变化谱三。我们的反例构造使用自伴扩展的对称算子。
英文摘要：
This article is about erroneous attempts to weaken the standard definition of unbounded Kasparov module (or spectral triple). We present counterexamples to claims in the literature that Fredholm modules can be obtained from these weaker variations of spectral triple. Our counterexamples are constructed using self-adjoint extensions of symmetric operators.
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。
