$q$-Matroids are the $q$-analogue of matroids. In this short note we consider the direct sum of $q$-matroids, as introduced recently in the literature. We show that the direct sum of representable $q$-matroids may not be representable. It remains an open question whether representability of the direct sum can be characterized by the given $q$-matroids.

翻译：Q$-Matroids是机器人的美元比方。在本简短的说明中,我们认为,正如最近文献中介绍的那样,直接总和是Q美元-Matroids。我们表明,可代表的Q美元-Matroids的直接总和可能无法代表。直接总和的可代表性能否以给定的q美元-Matroids为特征,仍然是一个尚未解决的问题。