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Showing 2009 · math.DGShow all
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math.DG2009
Elementary Surprises in Projective Geometry
Richard Evan Schwartz, Serge Tabachnikov
We discuss eight new(?) configuration theorems of classical projective geometry in the spirit of the Pappus and Pascal theorems.
math.DG2009★ 9 cited
Hypercomplex structures on Courant algebroids
Mathieu Stienon
Hypercomplex structures on Courant algebroids unify holomorphic symplectic structures and usual hypercomplex structures. In this note, we prove the equivalence of two characterizat…