24 research outputs found

    Classification of the virtually cyclic subgroups of the pure braid groups of the projective plane

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    We classify the (finite and infinite) virtually cyclic subgroups of the pure braid groups Pn(RP2)P_{n}(RP^2) of the projective plane. The maximal finite subgroups of Pn(RP2)P_{n}(RP^2) are isomorphic to the quaternion group of order 8 if n=3n=3, and to Z4\Z_{4} if n≥4n\geq 4. Further, for all n≥3n\geq 3, up to isomorphism, the following groups are the infinite virtually cyclic subgroups of Pn(RP2)P_{n}(RP^2): Z\Z, Z2×Z\Z_{2} \times \Z and the amalgamated product Z4∗Z2Z4\Z_{4} \ast_{\Z_{2}} \Z_{4}.Comment: 15 page

    Supermileage Seat and Wheel Development and Production: Final Report

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    This report documents the design and manufacturing efforts of the Cal Poly senior project team Central Coast Composites. It details the design, analysis and manufacturing of a composite seat and wheels for the Cal Poly Supermileage team. It further outlines suggestions for future efforts to manufacture composite wheels for Cal Poly Supermileage team\u27s Urban Concept Vehicle

    Braid groups and the group of homeomorphisms of a surface

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