A minimax converse for the identification via channels is derived. By this converse, a general formula for the identification capacity, which coincides with the transmission capacity, is proved without the assumption of the strong converse property. Furthermore, the optimal second-order coding rate of the identification via channels is characterized when the type I error probability is non-vanishing and the type II error probability is vanishing. Our converse is built upon the so-called partial channel resolvability approach; however, the minimax argument enables us to circumvent a flaw reported in the literature.

翻译：通过频道识别的微型反差。 通过这个反差, 身份识别能力的一般公式与传输能力相吻合, 在没有假设强烈反差的情况下被证明。 此外, 通过频道识别的最佳第二顺序编码率在I错误概率非损耗和二类错误概率消失时被定性为最佳第二顺序编码率。 我们的反差建立在所谓的部分通道可解析性方法上; 但是, 小型参数使我们得以绕过文献中报告的缺陷。