论文标题

两种不等式的准对称设计的等效性

The equivalence of two inequalities for quasisymmetric designs

论文作者

Brouwer, A. E.

论文摘要

如果霍巴特对准对称2设计的参数的不平等是否与早期已知的限制无关。在本说明中,我们表明它等同于Neumaier和Calderbank发现的不等式。我们还提供了Blokhuis-CalderBank不平等所排除的更多参数集。

It has been an open problem whether Hobart's inequality on the parameters of a quasisymmetric 2-design is independent of earlier known restrictions. In this note we show that it is equivalent to inequalities found by Neumaier and Calderbank. We also give some more parameter sets ruled out by the Blokhuis-Calderbank inequality.

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