Relative projection constants and strong unicity constants for a certain class of projection operators on the space l ^{2 n}_∞ are found. The maximum values of strong unicity constants are calculated for the projection operators with unit norm on certain codimension-2 subspaces formed by using hyperplanes in l ^{2 n}_∞ .

中文翻译：

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l∞2 n中一类Codimension-2子空间的投影常数

对于某一类上的空间投影算子的相对投影常数和强单一性常数升^{2 Ñ} _∞中找到。强单一性常数的最大值被计算为投影算子与通过使用超平面形成一定余维-2子空间单位范数升^{2 Ñ} _∞。