In algebra, the principal factor of a -class J of a semigroup S is equal to J if J is the kernel of S, and to otherwise. Properties A principal factor is a simple,…
In algebra, the principal factor of a -class J of a semigroup S is equal to J if J is the kernel of S, and to otherwise.
Properties A principal factor is a simple, 0-simple or null semigroup.Grillet (1995), p. 50, Proposition 4.9.
References
Further reading . . .
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