权威例句
The Diagonal Subring and the Cohen-Macaulay Property of a Multigraded RingEach countable reduced torsion-free commutative ring is a pure subring of an e-ringAN EQUIVALENCE BETWEEN RING F AND INFINITE MATRIX SUBRING OVER FOn Rees Algebras with a Gorenstein Veronese Subring ☆Non-Noetherian rings for which each proper subring is NoetherianOn the subring structure of finite nilpotent ringsGerms of arcs on singular algebraic varieties and motivic integrationDynamical Systems of Algebraic OriginSecure execution of program codeRoughness in rings