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34 lines
839 B
C
34 lines
839 B
C
/*
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Copyright (C) 2016 Pascal Molin
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "dirichlet.h"
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ulong
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dirichlet_pairing(const dirichlet_group_t G, ulong m, ulong n)
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{
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ulong x;
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dirichlet_char_t a, b;
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if (n_gcd(G->q, m) > 1 || n_gcd(G->q, n) > 1)
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return DIRICHLET_CHI_NULL;
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dirichlet_char_init(a, G);
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dirichlet_char_init(b, G);
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dirichlet_char_log(a, G, m);
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dirichlet_char_log(b, G, n);
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x = dirichlet_chi_char(G, a, b);
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dirichlet_char_clear(a);
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dirichlet_char_clear(b);
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return x;
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}
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