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Search: Posts Made By: Dougy
Forum: Math 2010-10-14, 21:31
Replies: 59
Views: 3,304
Posted By Dougy
Congratulations! ...and thanks for going to that...

Congratulations! ...and thanks for going to that trouble.
Forum: Math 2010-09-23, 01:14
Replies: 59
Views: 3,304
Posted By Dougy
Thanks for going to all this trouble (:

Thanks for going to all this trouble (:
Forum: Math 2010-09-07, 12:22
Replies: 59
Views: 3,304
Posted By Dougy
Thanks for that, that's great! In either case,...

Thanks for that, that's great! In either case, it would be significantly faster than if I ran it myself.
Forum: Math 2010-09-07, 01:01
Replies: 59
Views: 3,304
Posted By Dougy
Seeking a proof that 5^7954+7954 is prime

Hi guys,
Could someone please prove that 5^7954+7954 is prime? This question came up on math.stackexchange.com (here (http://math.stackexchange.com/questions/4125) is the question). I won't be...
Forum: Math 2010-07-17, 02:30
Replies: 90
Views: 6,183
Posted By Dougy
Cool, I thought that was a gcd(...). I think...

Cool, I thought that was a gcd(...). I think (a,b) where a and b are natural numbers is typically assumed to mean gcd(a,b) (at least, it is in the papers I've read).

This is starting to make some...
Forum: Math 2010-07-14, 11:44
Replies: 90
Views: 6,183
Posted By Dougy
Where are the references? What is a "selfridge"?...

Where are the references? What is a "selfridge"? What you call a "characteristic equation" is not a characteristic equation...
Forum: Math 2010-02-16, 10:20
Replies: 3
Views: 811
Posted By Dougy
I'm surprised how little interest there is in...

I'm surprised how little interest there is in this... ah well. Anyway, my thesis has now been accepted so I will have my Ph.D. soon (after some admin hurdles). I uploaded the thesis to this website...
Forum: Lounge 2009-11-28, 00:14
Replies: 93
Views: 7,046
Posted By Dougy
Here...

Here (http://maps.google.com.au/maps?hl=en&source=hp&ie=UTF8&t=h&ll=-37.911802,145.135531&spn=0.019909,0.038581&z=15)'s my uni... (:
Forum: Math 2009-11-12, 07:29
Replies: 3
Views: 811
Posted By Dougy
Thanks (:. They say the thesis will be available...

Thanks (:. They say the thesis will be available online, so I can post a link.

Well not much of a race to respond... I'm not sure if it's because it's quite off-topic for this forum. The code,...
Forum: Math 2009-11-10, 02:18
Replies: 3
Views: 811
Posted By Dougy
Counting Latin rectangles

Hi folks,

As some may know already, I'm about to complete my thesis on the enumeration of Latin rectangles. Here (http://combinatoricswiki.org/wiki/Enumeration_of_Latin_Squares_and_Rectangles)'s...
Forum: Math 2009-10-27, 09:31
Replies: 3
Views: 539
Posted By Dougy
Curious, Shor is also interested in problems...

Curious, Shor is also interested in problems regarding Latin squares (http://en.wikipedia.org/wiki/Latin_square).
Forum: Math 2009-10-21, 10:04
Replies: 11
Views: 898
Posted By Dougy
Hmmm... it looks like they're making some...

Hmmm... it looks like they're making some progress... http://arxiv.org/abs/0910.3926. At least for this "Density Hales-Jewett theorem" problem.
Forum: Math 2009-10-09, 00:02
Replies: 11
Views: 898
Posted By Dougy
I am quite surprised how much time these experts...

I am quite surprised how much time these experts are spending putting this online and answering questions... I certainly wouldn't have time to do that. Although most of the responses I see here...
Forum: Math 2009-10-07, 22:45
Replies: 11
Views: 898
Posted By Dougy
Collaborative mathematics: the "polymath" project

There seems to be a bit of a buzz about this "polymath" idea... basically, many people get together online and work together on a maths problem.

Here's a blog post: Is massively collaborative...
Forum: Miscellaneous Math 2009-09-26, 22:52
Replies: 4
Views: 533
Posted By Dougy
The arXiv is an interesting one. It contains the...

The arXiv is an interesting one. It contains the whole spectrum, from as-good-as-it-gets research (eg. The primes contain arbitrarily long arithmetic progressions...
Forum: Miscellaneous Math 2009-09-25, 01:25
Replies: 4
Views: 533
Posted By Dougy
The journal of everything

This is perhaps the worst journal around: Philica (http://philica.com/index.php), colloquially called "the journal of everything." This has become a running joke with my supervisor -- "you should...
Forum: Math 2009-09-16, 21:34
Replies: 2
Views: 603
Posted By Dougy
Great. Unfortunately I won't be able to make it...

Great. Unfortunately I won't be able to make it as I went to a conference in Denver instead (more suited to my topic) and used up all my funding. In future, who knows. I'm a bit disappointed to...
Forum: Math 2009-09-16, 08:14
Replies: 24
Views: 2,298
Posted By Dougy
Interesting, thanks for that link.

Interesting, thanks for that link.
Forum: Math 2009-09-13, 21:28
Replies: 27
Views: 1,316
Posted By Dougy
``Congruence'' means ``equivalence'' in some...

``Congruence'' means ``equivalence'' in some sense. This is one of the words in mathematics that has many meanings depending on what area of mathematics your interested in (eg. there are congruent...
Forum: Math 2009-09-12, 04:13
Replies: 24
Views: 2,298
Posted By Dougy
Hmm... I just realised that I didn't state that...

Hmm... I just realised that I didn't state that the above remark is false when n=2. (yes, we did spot that in the paper)
Forum: Math 2009-09-11, 21:05
Replies: 10
Views: 935
Posted By Dougy
So anyway, I ended up submitting an expanded...

So anyway, I ended up submitting an expanded version of what's on the arXiv. Every paper counts when you're looking for a postdoc.
Forum: Other Mathematical Topics 2009-09-06, 23:24
Replies: 14
Views: 1,788
Posted By Dougy
Hmmm... this should be on the Mersenne Wiki...

Hmmm... this should be on the Mersenne Wiki (http://www.mersennewiki.org/index.php/Main_Page).
Forum: Other Mathematical Topics 2009-09-06, 21:52
Replies: 14
Views: 1,788
Posted By Dougy
Although this method does not work if your number...

Although this method does not work if your number is a power of ten. For example \log_{10} 100=2 whereas 100 has three digits.
Forum: Math 2009-09-05, 22:37
Replies: 10
Views: 935
Posted By Dougy
Here's another "trivial" one that I spotted... if...

Here's another "trivial" one that I spotted... if you choose a=-1 and b=p_0+p_1. Then the sequence is p_0,p_1,p_0,p_1,... and so on.
Forum: Math 2009-09-03, 02:44
Replies: 8
Views: 1,262
Posted By Dougy
For those who are interested, I found another...

For those who are interested, I found another article on this topic:

MR2076210 (2005e:11002) Bosma, Wieb Cubic reciprocity and explicit primality tests for $h·3\sp k±1$. High primes and...
Showing results 1 to 25 of 152

 
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