collineation nel dizionario italiano Oxford-Paravia

Traduzioni di collineation nel dizionario inglese»italiano (Vai a italiano»inglese)

Traduzioni di collineation nel dizionario italiano»inglese (Vai a inglese»italiano)

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collineazione
collineation

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inglese
A duality is a collineation from a projective space onto its dual space, taking points to hyperplanes (and vice versa) and preserving incidence.
en.wikipedia.org
Thus, the fixed point and fixed line structure for any collineation either form a projective plane by themselves, or a degenerate plane.
en.wikipedia.org
It is a bijection that maps lines to lines, and thus a collineation.
en.wikipedia.org
One may also define collineation groups for axiomatically defined projective spaces, where there is no natural notion of a projective "linear" transform.
en.wikipedia.org
Not that a central collineation is uniquely defined by its center, its axis, a point and its image.
en.wikipedia.org
The geometric view of a central collineation is easiest to see in a projective plane.
en.wikipedia.org
More precisely, the collineation group is the projective semilinear group, which is the semidirect product of homographies by automorphic collineations.
en.wikipedia.org
Some authors restrict the definition of collineation to the case where it is an automorphism.
en.wikipedia.org
It is obvious now that is a collineation.
en.wikipedia.org
The composition of two central collineations, while still a homography, will in general not be a central collineation.
en.wikipedia.org

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