The classical Whitney's 2-Isomorphism Theorem describes the families of graphs having the same cycle matroid. In this paper we describe the families of graphs having the same truncated cycle matroid and prove, in particular, that every 3-connected graph, except for K4, is uniquely defined by its truncated cycle matroid.

翻译：古典惠特尼的2-异形理论描述了具有相同周期类固醇的图表的系列。 在本文中,我们描述了具有相同短短周期类固醇的图表的系列,并特别证明,除K4外,每三条相连的图,其短周期类固醇的定义是独特的,但K4除外。