Linkage Extensions
英文摘要：
Given two equidimensional Cohen-Macaulay local rings of the same dimension, one shows that a simultaneous extension of each of them by a dualizing module of the other is Gorenstein. This generalizes a theorem of Fossum. The geometrical analogue is also considered. The pairs of double lines in the projective space which are algebraically linked are classified.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
