UBC Theses and Dissertations

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UBC Theses and Dissertations

Geometric retracts of Siegel's upper half space Martel, Justin


The purpose of this thesis is to construct a codimension 1 cocompact Sp₂gℤ-equivariant strong deformation retract Wg of Siegel's upper half space hg . This yields a partial contribution towards the problem of constructing a strong spine for the real linear symplectic group Sp₂gℝ.

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