13,082 research outputs found
John Smith and Platonism in A Discourse Concerning the True Way or Method of Attaining to Divine Knowledge
An affirmative answer to a conjecture for Metoki class
In "The {G}el'fand-{K}alinin-{F}uks class and characteristic classes of
transversely symplectic foliations" arXiv:0910.3414, Kotschick and Morita
showed that the Gel'fand-Kalinin-Fuks class in \ds\HGF{7}{2}{}{8} is
decomposed as a product of some leaf cohomology class
and a transverse symplectic class . We show that the same
formula holds for Metoki class, which is a non-trivial element in \ds
\HGF{9}{2}{}{14}. The result was conjectured by Kotschick and Morita, where
they studied characteristic classes of symplectic foliations due to Kontsevich.
Our proof depends on Groebner Basis theory using computer calculations.Comment: 11 plain text files which are output of Maple calculations and also
raw materials. These are stored subdirectory anc as ancillary files. You can
see the file size on appendice
Crosscap numbers of 2-bridge knots
We present a practical algorithm to determine the minimal genus of
non-orientable spanning surfaces for 2-bridge knots, called the crosscap
numbers. We will exhibit a table of crosscap numbers of 2-bridge knots up to
12crossings (all 362 of them).Comment: 17 pages, 7 figure
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