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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 />

Dacă notăm Y =<br />

⎛<br />

⎜<br />

⎝<br />

y1<br />

y2<br />

· · ·<br />

ym<br />

⎞<br />

⎟<br />

⎠<br />

X =<br />

Matricea unei transformări<br />

Rela¸tia dintre rang ¸si defect<br />

Schimbarea matricei unei transformări <strong>liniare</strong><br />

⎛<br />

⎜<br />

⎝<br />

x1<br />

x2<br />

· · ·<br />

xn<br />

⎞<br />

⎟<br />

⎠ , rela¸tia (3) devine<br />

Y = A · X. (4)<br />

⇐ Oricare ar fi matricele<br />

A ∈ Mm,n(Γ), X ∈ Mn,1(Γ), Y ∈ Mm,1(Γ), rela¸tia (4)<br />

define¸ste o transformare liniară.<br />

Transformări <strong>liniare</strong>

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