Browsing Matemáticas by Author "RINCONMEJIA, HA"

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ON THE LATTICE R-TORS FOR SEMIPERFECT AND QF RINGS

RINCONMEJIA, HA (1991)

We define the equivalence relation approximately F in R-tors by tau approximately F-sigma iff the class of tau-codivisible modules coincides with the class of sigma-codivisible modules. We define the equivalence relation ...
SEMIKERNELS, QUASI KERNELS, AND GRUNDY FUNCTIONS IN THE LINE DIGRAPH

RINCONMEJIA, HA; GALEANASánchez, H; Ramirez, LP (1991)

It is proved that the number of semikernels (quasi kernels) of a digraph D is less than or equal to the number of semikernels (quasi kernels) of its line digraph L(D). It is also proved that the number of Grundy functions ...

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