Group Information- Members: 414
- Category: Number Theory
- Founded: Sep 17, 2004
- Language: English
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Description
Re: Degree 4 vs degree 6
... Crossover from degree 4 to 6 (when 5 is not possible) is about difficulty 145-150 digits. Note: One sieving side, algebraic or rational, will be much
Posted - Tue Jul 7, 2009 3:53 pm
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Serge Batalov
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Degree 4 vs degree 6
Hello, When factoring something like a^3k-1 I first algebraically reduce it to (a^2k+a^k+1)(a^k-1). To crack the first part I need to convert it into a degree
Posted - Fri Jul 3, 2009 4:01 pm
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chris2be8
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Re: Automatically calculating skew
... The skew being larger than 1 is a good rule of thumb, and is especially useful becase the rest of the code assumes relations will have an 'a' coordinate
Posted - Sun Jun 21, 2009 10:07 pm
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Jason Papadopoulos
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Re: Automatically calculating skew
... ggnfs-doc.pdf page 17 says "It should be at least 1". So I assumed I should invert the result if less than 1. At least that's was the "Draft of February 8,
Posted - Sun Jun 21, 2009 3:44 pm
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chris2be8
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Re: Automatically calculating skew
... Ok, makes sense. Except that it doesn't have to flipped. It is always (|c0|/|cn|)**(1/n) (i.e. can be less than 1). I'll post it. Thanks. --Serge
Posted - Sat Jun 20, 2009 8:09 pm
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Serge Batalov
batalovs
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