Re: efficient foursquare() and/or threesquare1m4() functions

Bill Allombert on Sun, 08 Oct 2023 10:19:40 +0200

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Re: efficient foursquare() and/or threesquare1m4() functions

To: pari-users@pari.math.u-bordeaux.fr
Subject: Re: efficient foursquare() and/or threesquare1m4() functions
From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
Date: Sun, 8 Oct 2023 10:19:21 +0200
References: <d1c78430066dfb66eb8919b4cde59d9c@stamm-wilbrandt.de> <ZR/CnVFCjw69Ukyc@seventeen> <ZR/HnWWiyARDRhLM@seventeen> <ZSAT28CAqWZ+90qF@seventeen> <fd1141975cb1f0b4b488689089c0f980@stamm-wilbrandt.de> <ZSBJ5p0VR2EXTlqB@seventeen> <CAD0p0K7TTCbA7TR-4gn_peSKrGnPyDoTJ+LgeSsK9QKcC-X58g@mail.gmail.com> <26af7a392abb26df8258c64f9868d1bb@stamm-wilbrandt.de>

On Sun, Oct 08, 2023 at 01:25:07AM +0200, hermann@stamm-wilbrandt.de wrote:
> Because I already implemented generation of ternary quadratic form Q for n
> - that represents n
> - and has determinant 1.

> Now I need to figure out how to determine matrix M, such that
> M~*Q*M is diagonal matrix. The diagonal entries of M~*Q*M
> are three square representation of n.

See qfgaussred

Cheers,
Bill.

Follow-Ups:
- Re: efficient foursquare() and/or threesquare1m4() functions
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References:
- efficient foursquare() and/or threesquare1m4() functions
  - From: hermann@stamm-wilbrandt.de
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: hermann@stamm-wilbrandt.de
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: John Cremona <john.cremona@gmail.com>
- Re: efficient foursquare() and/or threesquare1m4() functions
  - From: hermann@stamm-wilbrandt.de

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