Definition
Let and be two rings (they may or may not be commutative, or contain an identity), and let be a homomorphism. Suppose that is a module over . Then it can be regarded as a module over, if the action of is given via for and .
Read more about this topic: Restriction Of Scalars
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“It is very hard to give a just definition of love. The most we can say of it is this: that in the soul, it is a desire to rule; in the spirit, it is a sympathy; and in the body, it is but a hidden and subtle desire to possessafter many mysterieswhat one loves.”
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