Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
S
Abstract Algebra: find product of permutations A, B
Replies
1
Views
1K
daon
D
F
Variational Functional whose min. corresp. to non-lin. Lapla
Replies
0
Views
1K
Felicity
F
F
Parabolic Coordinates: -1 + x^2 + y^2 < 2z < 1 - x^2 - y^2
Replies
0
Views
2K
Felicity
F
M
Abstract Algebra (orders of groups): U(3), U(4) U(12), etc
Replies
2
Views
8K
daon
D
L
location on sphere, given start location, velocity, time
Replies
3
Views
2K
mmm4444bot
mmm4444bot
F
Discrete math problem checks and questions.
Replies
2
Views
2K
daon
D
W
Why is this linearly independent? (linear algebra)
Replies
5
Views
2K
mmm4444bot
mmm4444bot
F
Discrete Mathematics Problem dealing with sets
Replies
6
Views
2K
Faxon
F
J
Power series soln for 4xy"+3y'+3y=0 near origin for x>0
Replies
1
Views
3K
tkhunny
tkhunny
L
Ramsey’s theorem: does every node belong to a clique?
Replies
2
Views
13K
leyou
L
D
Another prove/disprove; onto; inverse image
Replies
1
Views
1K
pka
pka
D
Prove/Disprove... Monotone functions and mapping sets.
Replies
7
Views
5K
dell500
D
L
"Lagrange multipliers"-like for inequalities (optimize algo)
Replies
4
Views
2K
stapel
stapel
H
Coordinate transformations applicable if not all pred. used?
Replies
1
Views
1K
Deleted member 4993
D
P
primitive roots: let r be prim rt of n; then r^k prim rt of
Replies
1
Views
2K
stapel
stapel
X
Inequalities: x(x+1)(x+2)(x+3) >= -1, (ab+bc+ca)^2 >= 3abc(a
Replies
1
Views
1K
tkhunny
tkhunny
X
arrange 1 to 1000 in table w/ 20 rows, 50 cols, so that....
Replies
1
Views
1K
soroban
S
P
Divisor Funtion Inequality: for n > 1, t(n) < 2*sqrt(n)
Replies
1
Views
1K
pka
pka
G
Matrix Inverses Proof: If I-BA is invertible then so is I-AB
Replies
0
Views
5K
Goistein
G
G
Calculus/Matrix Q: finite diff. matrix for d^2(x)/dx^2 + u =
Replies
6
Views
3K
Goistein
G
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