It has been shown in this paper that the commutative Frobenius algebra $QZ_5\otimes Z(QS_3)$ provides a complete invariant for two-dimensional cobordisms, i.e., that the corresponding two-dimensional quantum field theory is faithful. The essential role in the proof of this result plays Zsigmondy's Theorem.

中文翻译：

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忠实的二维 TQFT

本文已经证明可交换Frobenius代数$QZ_5\otimes Z(QS_3)$为二维cobordisms提供了一个完全不变量，即相应的二维量子场论是忠实的。Zsigmondy 定理在证明这一结果的过程中起重要作用。