作者：Elkies Noam D*; Kane Daniel M; Kominers Scott Duke
来源：Journal de Theorie des Nombres de Bordeaux, 2013, 25(3): 557-563.
DOI：10.5802/jtnb.848
摘要
In this note, we give simple examples of sets S of quadratic forms that have minimal S-universality criteria of multiple cardinalities. This answers a question of Kim, Kim, and Oh [KK005] in the negative.
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