Examples of Symplectic Q
نویسندگان
چکیده
We construct compatible symplectic structures on manifolds Q3 × S1 for Waldhausen Q3 and show it is possible iff Q3 is a Stallings fibrations over S1. We describe bordisms of Lagrangian T 2-bundles over S1 × I .
منابع مشابه
Symplectic spreads from twisted fields
A ,yml'/eclic 'l'J"wd of PG(2n + l,q) is a spread of the symplectic polar space ~V(2n + l,q) defined by a nonsingular alternating bilinear form on a (2n+2)dimensional vector space over GF(q), i.e., a set of q"+l + 1 pairwise disjoint maximal totally isotropic subspaces. Note that a symplectic spread of PG(3, q) is equivalent, under the Klein correspondence, to an ovoid of the quadric Q( 4, q). ...
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