Math Forum / Mathematics / General Topics / August 2007

i have joined the group,today, the 25th august.want to seek help from
group members for refreshing&updating knowledge of sci&math.i  want to
do research also.thanks.

I've noticed a curious thing. When I was a student in the
early 90s in Canada, there were many Math/Stat Profs with Indian
origin. Now I hardly see an Indian Math/Stat Prof in Canada. What
happened? I have a theory too. Most of the Indians who were smart enough

Is it possible that a function f from L^1 has compact support and it's Fourier transform also has a compact support, except, of course, the trivial case f = 0 a.e. ?

"Other than two, there are no natural numbers whose sum of their pairs, equal their squares."
     Thus, (n + n) = n^2, if, and only if; ( n = 2)
                          -Aiya-Oba (Poet/Philosopher)

Do you know ways to build a real continuous solution
for this functional equation?
I search functions defined on real non empty intervals,
Of course, constant fonction f(x) = 0 works.

I just got my Master's degree at an applied-leaning school and I want
to research the problem of factoring large integers somewhere else for
a PhD. Which school are doing the most research in factoring these
days?

Does anyone know if there exist an analytical solution for the
following expression?
Ax+Bsin(Cx) = D
Thanks in advance

I need the solutions manual for this book:
Calculus - Dale Varberg (9th edition) (ISBN: 0131429248)
Please email ASAP. Would like by the within 3 hours if possible, if
not I still need it anyways! Thanks!

Suppose you have 100 balls in an urn, and 15 of them are white.  What is
the expected number of balls you should pick randomly from the urn
(without replacement) before you get a white ball?
Obviously one can generalize the problem where 100 is n and 15 is m.

I have a 2-d map with a series of points scattered across it. These
aren't randomly scattered but are clustered in some places and along
filaments in other. I'm looking for a way to make a mathematical
description of their properties and maybe find an objective way of

maybe some of you could help me in becoming Master Of Science by
participating in my project?
All you have to do is download a program from this website http://primes.go.pl
and leave it for its own. Site is in polish, you probably won't

Since I have old Calculus book (Calculus by Howard Anton, 2nd edition), I
learned some modern Calculus books like 8th edition or 9th edition.   Should
I get new Calculus book for latest edition?
On Amazon.com, I was shopping for some books and learned some Calculus book

Hello sir~
Let f(z) be continuous in a domain D.
and suppose there is a differentiable function F(z) such that F'(z)=f(z) in
D.

Hi, once again I need help in understanding Hartshorne's Algebraic Geometry.
Suppose D is a divisor on a surface S, and let L(D) denote the
invertible sheaf corresponding to D.  Suppose C is a nonsingular
irreducible curve on S, and let O_C denote the structure sheaf on C.  

solve this equation
2^x = aleph_0
hint : 2^1729 is only finite and 2^aleph_0 is aleph_1
hahaha