态射和短正合列的预包络关于直和的封闭性
Preenvelope of Morphisms and Short Exact Sequences on the Closure ofDirect Sum
DOI: 10.12677/PM.2023.135153, PDF, HTML, 下载: 190  浏览: 240 
作者: 刘诗瑶*, 杨晓燕：西北师范大学，数学与统计学院，甘肃 兰州
关键词: 预包络；直和；封闭性；Preenvelope； Direct Sum； Closure
摘要: 本文利用左 R-模的预包络关于直和的封闭性, 研究了态射和短正合序列的预包络关于直和的封闭性。
Abstract: In this paper, we study that the preenvelopes of morphisms and short exact sequences are closed under direct sums using the fact that the preenvelope of left R-module is closed under direct sums.
文章引用：刘诗瑶, 杨晓燕. 态射和短正合列的预包络关于直和的封闭性[J]. 理论数学, 2023, 13(5): 1508-1515. https://doi.org/10.12677/PM.2023.135153

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