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Transformari liniare

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No¸tiunea de transformare liniară<br />

Transformări <strong>liniare</strong> între spa¸tii finit dimensionale<br />

Valori ¸si vectori proprii<br />

Spa¸tiul transformărilor <strong>liniare</strong><br />

Proprietă¸ti. Opera¸tii<br />

Nucleul ¸si imagine<br />

Rangul ¸si defectul unei transformări<br />

Fie V ¸si W spa¸tii <strong>liniare</strong> peste Γ, unde Γ = R sau complexe<br />

Γ = C. Notăm<br />

Teoremă<br />

L(V , W ) = {f : V → W , f transformare liniară}.<br />

L(V , W ) este spa¸tiu liniar peste Γ.<br />

Demonstra¸tie.<br />

Definim opera¸tiile<br />

f , g ∈ L(V , W ) (f + g)(u) = f (u) + g(u), ∀u ∈ V .<br />

f ∈ L(V , W ), α ∈ Γ, (α · f )(u) = α · f (u).<br />

Transformări <strong>liniare</strong>

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