On the group of lagrangian bisections of a symplectic groupoid
On the group of lagrangian bisections of a symplectic groupoid
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关于辛群曲面的拉格朗日平分群
DOI:
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发表时间:
2001
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通讯作者:
T. Rybicki
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作者:
T. Rybicki
The group of lagrangian bisections of a symplectic groupoid extends the concept of the symplectomorphism group. The flux homomorphism is a basic invariant of this group. It is shown that this group is a regular Lie group. The group of exact (hamiltonian) bisections is also studied. The existence of the flux homomorphism enables a characterization of exact isotopies.