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Messages 39 - 68 of 78   Oldest  |  < Older  |  Newer >  |  Newest
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39
Hello, Perhaps you may be interested to check out the conjecture, which I have made lately ? NO "n" exist, such that ( n! + prime(n) ) yields integral m^k ...
AlexP
wanttoknowwh...
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Sep 6, 2008
9:44 pm
40
Hi, I came up with OEIS A004664 related conjecture: n! + n^2 != m^2 for n>=1, m>= 0 I checked using PARI that indeed n! +n^2 doesn't yield perfect square up to...
AlexP
wanttoknowwh...
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Sep 27, 2008
10:36 pm
41
Hi there, I am trying to find a problem that has been proven to have no solution and I need some help. I know that is the class of problems called to be...
H A S K E L L
haskell3satc
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Nov 18, 2008
7:35 am
42
Hi Haskell, Well, there are several mathematical problems proved to be impossible, such as squaring the circle, doubling the cube and trisecting an angle. ...
Tim Roberts
tsr21
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Nov 18, 2008
7:43 am
43
Hi Tim, Let me explain myself, all those problems have answer, for example the Turing Halting is proved to not exist a Turing machine capable of saying if...
Haskell Curry
haskell3satc
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Nov 18, 2008
9:01 pm
44
Greetings ... not sure what kind of problems you seek but what about the proof that there is no general solution to a quintic (or higher) polynomial with real...
Warren
matemath
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Nov 19, 2008
1:32 am
45
No this problem still has an answer that "there is no general solution" the kind of problem I am looking would be more like "about the proof that cannot be...
H A S K E L L
haskell3satc
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Nov 19, 2008
8:45 pm
46
Minimal progress seems to have been made on any of the problems in 2008. Hopefully 2009 will be more productive! Tim...
Tim Roberts
tsr21
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Dec 26, 2008
8:05 am
47
A proposed solution to the Goldbach Conjecture has been posted on the Solutions page at http://www.unsolvedproblems.org/UP/Solutions.htm Tim...
Tim Roberts
tsr21
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Jan 1, 2009
11:37 pm
48
Hello all, The web site at http://unsolvedproblems.org has undergone a revamp. Also added since the beginning of 2009 are a proposed solution to the Goldbach...
Tim Roberts
tsr21
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Jan 12, 2009
3:52 am
49
Here is some great progress made on RH. http://www.singularics.com/science/mathematics/ Best, Alex -- alex petty ceo singularics corporation advancing energy...
Alex Petty
hdcalex
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Jan 12, 2009
9:42 pm
50
... and possibly deliberately fatuous. This sentence on page 2 is a barefaced lie: It follows from them quite clearly that a pair of unique, integral legs must...
Ross Presser
rpresser
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May 2, 2009
11:06 am
51
I began working on the Goldbach Conjecture 2 months ago. I 'solved' it within 3 days in layman's terms but I have spent the rest of the time trying to express...
whotoldyouthat
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Jul 30, 2009
12:34 pm
52
Hi whotoldyouthat, That's precisely what the unsolved problems web site is for - for ideas and semi-proofs that may be right or may be wrong, but in either...
Tim Roberts
tsr21
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Jul 30, 2009
12:40 pm
53 whotoldyouthat
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Jul 31, 2009
8:42 am
54
Hi whotoldyouthat, You can do either - just post it to this Yahoo! group if you want some informal discussion (free, but the group is quite small), or have it...
Tim Roberts
tsr21
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Jul 31, 2009
8:53 am
55
I believe I've solved the Dorabella cipher. It turns out to be a pure substitution cipher. Please see the solutions page, the three files at #12. ...
Tim Roberts
tsr21
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Aug 9, 2009
4:14 am
56
... Good News! Love to read it but when I went to unsolvedproblems.org and selected link for Dorabella solutions this text box page came up??? ...
whotoldyouthat
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Aug 9, 2009
8:28 am
57
The link works fine for me - is anyone else having problems?  Maybe you have some old page in your cache - have you tried pressing <ctrl><refresh>? Tim ...
Tim Roberts
tsr21
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Aug 9, 2009
8:33 am
58
... Refresh didn't work - I keep getting this: Text Box: In Number Theory, Logic, and Cryptography Text Box: This page provides a means for authors to have...
whotoldyouthat
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Aug 9, 2009
9:16 am
59
Sorry, can't help.  Maybe your browser settings are not right? By the way, a real name would be good. Tim ________________________________ From:...
Tim Roberts
tsr21
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Aug 9, 2009
9:22 am
60
Tim, Sorry didn't bother to mention my name is Tina. Anyway something has flipped im my browser because I used to be able to read the solutions page (with the...
whotoldyouthat
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Aug 9, 2009
11:43 am
61
Hi Tina, Hopefully your system can read the following files: http://unsolvedproblems.org/s12a.doc http://unsolvedproblems.org/s12b.xls ...
Tim Roberts
tsr21
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Aug 9, 2009
12:25 pm
62
Yep - could read files OK. My comments are just based on the first text file. In my reading about the Dorabella Cipher I thought they had out-ruled direct...
whotoldyouthat
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Aug 9, 2009
9:32 pm
63
Can't see the postings either, Tim - but I think it is a problem of the website itself, not of my browser....
procman66-math@...
renaat.truijen
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Aug 9, 2009
9:32 pm
64
Very strange! Tim ________________________________ From: "procman66-math@..." <procman66-math@...> To: UnsolvedProblems@yahoogroups.com Sent:...
Tim Roberts
tsr21
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Aug 9, 2009
11:15 pm
65
Tina, Thanks for this.  I'll take your comments on board. How's Goldbach coming along? Tim ________________________________ From: whotoldyouthat...
Tim Roberts
tsr21
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Aug 9, 2009
11:16 pm
66
... It must be Elgar's last curse, stopping people from seeing your solution. What objections do you think you will get to the misspellings in the message? ...
zzgorme
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Aug 10, 2009
12:30 am
67
Hello all, I've re-uploaded the solutions page - please try again and let me know how you get on! http://unsolvedproblems.org/ Tim...
Tim Roberts
tsr21
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Aug 10, 2009
12:31 am
68
Hi Renaat, This morning the problem of viewing site link seems to be sorted. Hope it is same at your end. Dorabella is a strange little P.S. note....
whotoldyouthat
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Aug 11, 2009
10:46 pm
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