Selfadhesivity is a property of entropic polymatroids which can be formulated as gluability conditions of the polymatroid to an identical copy of itself along arbitrary restrictions and such that the two pieces are independent given the common restriction. We show that positive definite matrices satisfy this condition as well and examine consequences for Gaussian conditional independence structures. New axioms of Gaussian CI are obtained by applying selfadhesivity to the previously known axioms of structural semigraphoids and orientable gaussoids.

翻译：自饱和性是一种可被配制为多甲醇可溶性条件的昆虫多甲醇特性,可按任意限制本身的相同体格配成相同的体格,因此,鉴于共同的限制,这两件物品是独立的。我们表明正确定基质也满足这一条件,并研究对高萨有条件独立结构的影响。高萨光学光学的新法则是通过对先前已知的结构类比和可调整的类固醇的轴数应用自饱和性获得的。