I removed those comments that were not related to the question Chandru1 posted, and reproduce them here so that they will not be lost. Both on-topic and off-topic comments have been provided for context.
Chandru1, may I suggest in the future
that you ask your friends to post
their interesting problems
themselves... – Qiaochu Yuan 13 hours
ago
$\mathbb{Q}(\sqrt{-11})$ has class
number one. – Robin Chapman 12 hours
ago
@Qioachu Yuan: Whether "my friend" posts or i post whats the
difference? – Chandru1 12 hours ago
@Chandru1: It is fine to post your
friend's question (and I'm not sure
why you put that in quotes), but I
agree with Qiaochu. If your friends
post their own questions, they can
interact directly with the answerers.
Also, you have posted 98 questions in
40 days; it might be nice to take a
breather and at the same time
encourage more people to get involved
with this website. – Jonas Meyer 12
hours ago
deleted comment from Chandru1
@Chandru1: No, I don't
mean to say that there is a
restriction on the number of questions
you can post (nor am I in any way an
authority), just that it would be
beneficial to the website to have more
people involved, including your
friends, and hopefully beneficial to
your friends to use the website
directly. There is also some
discussion on meta about how rapidly
posting questions makes it more
difficult to follow-up appropriately
on each one. – Jonas Meyer 12 hours
ago
Here's the source: Mathematical
Olympiad in China: problems and
solutions by Bin Xiong, Peng Yee Lee -
Page 115 – baudrillard 12 hours ago
@Jonas Meyer: Agreed! – Chandru1 12 hours ago
deleted comment from Chandru1
@Chandru1 I've made a
simple Google Books search, it took me
less than a minute. The exact search
line was: diophantine "with * being
odd numbers". By the way, there's a
complete solution in the book. –
baudrillard 12 hours ago
@baudrillard: Great thinking! I was trying with Diophantine equation
has a solution :x)! – Chandru1 12
hours ago
@Chandru: Maybe you should edit the
source back in quickly, before we got
another complain ;) – KennyTM♦ 12
hours ago
Chandru: why exactly don't you want your friends to come here? This
site could use more people, you know.
It would also be better that they can
directly ask people who "know" instead
of having to use an intermediary. – J.
M. 10 hours ago
@Robin Chapman, I noticed that
$z^2+z+3$ has discriminant $-11$ but
how does the class number come into
play? – muad 5 hours ago