We find and prove a class of congruences modulo 4 for eta-products associated with certain ternary quadratic forms. This study was inspired by similar conjectured congruences modulo 4 for certain mock theta functions.

中文翻译：

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重量 ETA 产品的全等模 4

我们发现并证明了一类与某些三元二次型相关的 eta 积的模 4 同余。这项研究的灵感来自于某些模拟 theta 函数的类似推测同余模 4。