Changes between Initial Version and Version 1 of Ticket #13215, comment 115


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Timestamp:
08/02/16 08:12:00 (5 years ago)
Author:
caruso
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  • Ticket #13215, comment 115

    initial v1  
    11The problem comes from the multiplication by the skew polynomial 0 which does not work as expected (it returns a polynomial of positive degree):
    22{{{
    3     sage: k.<a> = GF(5^2)
    4     sage: S.<x> = SkewPolynomialRing(k, k.frobenius_endomorphism())
    5     sage: zero = S(0)*x
    6     sage: zero.degree()
    7     1
    8     sage: zero + 1
    9      + 1
     3sage: k.<a> = GF(5^2)
     4sage: S.<x> = SkewPolynomialRing(k, k.frobenius_endomorphism())
     5sage: zero = S(0)*x
     6sage: zero.degree()
     71
     8sage: zero + 1
     9 + 1
    1010}}}