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 Showing results 1 to 25 of 400 Search took 0.07 seconds. Search: Posts Made By: bhelmes
 2022-06-28, 20:48 Replies: 1 Views: 257 Posted By bhelmes non quadric residue of Q/Z A peaceful and joyful night for you if you consider the finite group of rationals modulo p resp. u/v mod p element of Q/Z Is u/v a non quadratic residue, if jacobi (u²+v², p)=-1 or if...
 2022-06-08, 11:44 Replies: 18 Views: 1,873 Posted By bhelmes A peaceful and pleasant day for you, I miss... A peaceful and pleasant day for you, I miss the case 4. g=1 and f odd I am searching for x²+y²=m²+n²=d mod f, resp. two sums of squares with the same norm d mod f. Algorithm: choose a...
 2022-06-04, 18:25 Replies: 18 Views: 1,873 Posted By bhelmes A peaceful day for you, Is there a known... A peaceful day for you, Is there a known algorithm for x²+y²=m²+n²=d mod f I think it is easier than to find x²+y²=0 mod p Any interesting suggestion how to speed up Gimps ? I really need...
 2022-05-19, 23:50 Replies: 18 Views: 1,873 Posted By bhelmes A peaceful and pleasant night for you, if a... A peaceful and pleasant night for you, if a compositon of n=x²+y² exists and n not a prime, how many different compostions exist depending of the number of factors of n ? Please have patience...
 2022-05-07, 00:26 Replies: 18 Views: 1,873 Posted By bhelmes I only needed one composition and the algorithm... I only needed one composition and the algorithm is described under https://en.wikipedia.org/wiki/Fermat%27s_theorem_on_sums_of_two_squares The english version of wikipedia is much better than the...
 2022-05-04, 23:38 Replies: 18 Views: 1,873 Posted By bhelmes n=a²+b² A peaceful and pleasant night for you, if n odd and not a square and n, a, b element N how do I find (fast) the composition n=a²+b² ? Thanks in advance if you spent me some lines or a link. ...
 Forum: Lounge 2022-04-15, 23:21 Replies: 915 Views: 99,833 Posted By bhelmes You just might be addicted to GIMPS if you are... You just might be addicted to GIMPS if you are desperated that there is still no new Mp. As you know that your computer can run 5% faster if you decrease the temperature by 10 degree, you bay a...
 Forum: Miscellaneous Math 2022-04-02, 00:42 Replies: 2 Views: 718 Posted By bhelmes After removing some bugs and some duplicates it... After removing some bugs and some duplicates it looks nicer: http://devalco.de/matrix_with_det_1/system_matrix_with_det_1.php The matrixs mod p, with p=3 mod 4 look o.k. but the other...
 2022-03-24, 23:12 Replies: 10 Views: 2,827 Posted By bhelmes if det (M)=1 and M symmetric and M<>E you can... if det (M)=1 and M symmetric and M<>E you can diagonalize M to M', where still M'^p=E mod f and the det (M')<>1 Nevertheless my implementation fails for M149 and I know why. :redface:...
 Forum: Lounge 2022-03-10, 20:34 Replies: 9 Views: 651 Posted By bhelmes I prefer juggling, 5 balls if I am warmed up. ... I prefer juggling, 5 balls if I am warmed up. http://rabbitweb.de There was a time, I tried to make a living from juggling. I can teach it and tried four schools. One hour juggling is a good...
 Forum: Miscellaneous Math 2022-03-10, 02:54 Replies: 2 Views: 718 Posted By bhelmes visualisations of primes / cycle representations A peaceful night for you, this is a visualisation for the exponentation of 2*2 matrixs with determant 1 mod f. I think it is mathematical correct, but perhaps there might be a more beautiful...
 2022-03-08, 04:43 Replies: 10 Views: 2,827 Posted By bhelmes If I limit the 2x2matrixs to those with... If I limit the 2x2matrixs to those with determinant equal 1, your sentence is of course right. Unfortenately I see no way to get a factorisation result of f. Is there a known factorisation...
 2022-03-03, 23:12 Replies: 10 Views: 2,827 Posted By bhelmes This is a try for a visulisation of 2x2 matrixs... This is a try for a visulisation of 2x2 matrixs with determinant of 1 and their exponentation modulo p: http://devalco.de/matrix_with_det_1/system_matrix_with_det_1.php If you have an idea for...
 2022-03-02, 03:04 Replies: 10 Views: 2,827 Posted By bhelmes It is amazing and beautiful. One mathematical... It is amazing and beautiful. One mathematical sentence which explains everything. Thanks a lot for this clear and fruitful explication. :bow::hello::cmd::uncwilly: P.S. I am on vacation,...
 2022-02-28, 11:15 Replies: 10 Views: 2,827 Posted By bhelmes I do matrix multiplication and at the end I... I do matrix multiplication and at the end I calculate every element mod f: M:= (a; b) (c; d) M mod f := (a mod f; b mod f) (c mod f; d mod f)
 2022-02-28, 08:46 Replies: 10 Views: 2,827 Posted By bhelmes E should be the unit matrix (1;0;0;1) and... E should be the unit matrix (1;0;0;1) and there might be something similar to a p-1 test factorisation. Perhaps I have reinvented a pollard p-1 test. But at least I would know how fast my...
 2022-02-28, 01:09 Replies: 10 Views: 2,827 Posted By bhelmes factorisation for M^p=E mod f A peaceful night for you, Let M be a 2x2 matrix and p a prime with p>2 and f the number which should be factorized. If I have succesful found a M and p with M^p=E mod f, is there a way to detect...
 Forum: MattcAnderson 2022-02-15, 01:30 Replies: 3 Views: 234 Posted By bhelmes if p | f(n) then p | f(n+p) Think about it. if p | f(n) then p | f(n+p) Think about it.
 2022-02-14, 05:10 Replies: 4 Views: 1,885 Posted By bhelmes Considering the matrix M of the form (n²+1; n)... Considering the matrix M of the form (n²+1; n) (n; 1) =(a; b) (c; d) The determinant is one. For n=0 it includes the neutral element concerning the multiplication,
 Forum: Lounge 2022-02-13, 23:43 Replies: 915 Views: 99,833 Posted By bhelmes You just might be addicted to GIMPS if you note... You just might be addicted to GIMPS if you note happily that your house has a 100 amper fuse by 220 volt and you ask all your 14 neighbours in the house if they could reduce their power consumption,...
 2022-02-12, 04:08 Replies: 1 Views: 435 Posted By bhelmes hensel lifting or chinese remainder A peaceful and pleasant night for you, I know the hensel lifting in order to lift a zero point of a polynomial to a zero point of order 2. Is it possible to get the same result with the chinese...
 Forum: Hardware 2022-02-09, 21:45 Replies: 139 Views: 20,708 Posted By bhelmes I pay 0,32 Euro / kwh in Germany, it is... I pay 0,32 Euro / kwh in Germany, it is "ökostrom" means generated in Flensburg. I think finding the next Mp will delight me a lot more. The search for the next Mp seems to be difficult, one good...
 Forum: PrimeNet 2022-02-06, 17:06 Replies: 3 Views: 543 Posted By bhelmes I think the problem is not on my side, see photo. I think the problem is not on my side, see photo.
 Forum: PrimeNet 2022-02-06, 02:45 Replies: 3 Views: 543 Posted By bhelmes could not add my benchmark report I did not succeeded in adding my benchmark report, I used mprime -m, option 17, [Work thread Feb 6 03:36] FFT timings benchmark complete. [Work thread Feb 6 03:36] Worker stopped. [Comm thread...
 Forum: Miscellaneous Math 2022-01-26, 02:12 Replies: 19 Views: 3,933 Posted By bhelmes The special linear group, SL(n, F), is the group... The special linear group, SL(n, F), is the group of all matrices with determinant (https://en.wikipedia.org/wiki/Determinant) 1. When F is R or C, SL(n, F) is a Lie subgroup...
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