ω-cover相关论文
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
This paper is motivated by S. Park [10] in which the injective cover of left R[x]module M[x-1] of inverse polynomials ov......