Tilting-Twisting-Rolling: a pen-based technique for compass geometric construction
نویسندگان
چکیده
منابع مشابه
Twisting geometric codes
The aim of this paper is to explain how, starting from a Goppa code C(X,G, P1, ..., Pn) and a cyclic covering π : Y → X of degree m, one can twist the initial code to another one C(X,G + Dχ, P1, ..., Pn), where Dχ is a non-principal degree 0 divisor on X associated to a character χ of Gal(Y/X), in the hope that `X(G + Dχ) > `X(G). We give, using a MAGMA program, several examples where this occu...
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ژورنال
عنوان ژورنال: Science China Information Sciences
سال: 2017
ISSN: 1674-733X,1869-1919
DOI: 10.1007/s11432-017-9063-2