0
$\begingroup$

Wat exactly does the notation $$A : (BC)$$ mean? We are talking about fractional R ideals. From definitions i get, if $$a \in A:(BC)$$ then $$a(BC)\subset A$$

But what am i saying exactly?

I hope someone can explain this to me.

  • 0
    Usually the notation $(I:J)$ in commutative algebra refers to an ideal quotient, which is slightly different from a fractional ideal. https://en.wikipedia.org/wiki/Ideal_quotient2012-09-16

2 Answers 2