Infinitesimal incidence in noncommutative algebraic geometry, with applications to noncommutative conic sections

Arne B. Sletsjøe

Preprint series, Matematisk institutt, Univ. of Oslo, No. 28-2000


We study the geometry of associative (noncommutative) algebras. The concept of interaction or infinitesimal incidence is explored by considering non-vanishing of certain Ext-groups. As an application non-commutative conic sections are investigated.
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November, 15, 2000,