Annihilator of a vector subspace

For

U \leq V

,

U^{\circ} = {f \in V^{*} : f ∣_{U} = 0} .

In finite dimensions,

dim U^{\circ} = dim V - dim U

.

 Ancestors (6)

 Incoming links (6)

Dual image and kernel annihilator identity
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