Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
S
Proof by induction: For finite sets A, B w/ cardinality n, m >= 1, show there are...
Replies
1
Views
2K
barrick
B
E
Prove that, for X*Y = {x*y : x in X, y in Y}, we have inf{X*Y} = inf X* inf Y and...
Replies
1
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1K
stapel
stapel
C
Matrix Triangularisation/Gauss Jordan Reduction with complex number + eulars formula
Replies
2
Views
1K
stapel
stapel
S
Draw directed graph; state if relation is reflexive, transitive, or symmetric.
Replies
5
Views
2K
stapel
stapel
J
Proof for any smaller common divisor than g.c.d. being not a linear combination
Replies
8
Views
2K
jiten
J
J
Properties of non-integer combinations
Replies
0
Views
1K
jiten
J
A
Does graph G exist s.t. G has induced subgraph cycle C6 but no inducd sbgrph path P4?
Replies
1
Views
1K
ksdhart2
K
M
0-1 integer programming problem - Greatest Resource Utiliazation
Replies
1
Views
940
tkhunny
tkhunny
S
Prove that function f: X->Y is INJECTIVE if...
Replies
1
Views
2K
Dr.Peterson
Dr.Peterson
D
Prove sum [k=1,n] |sin(k)| >= (n+1)/2 - 1/(2 sin(1))
Replies
1
Views
1K
stapel
stapel
P
Spreading a virus
Replies
1
Views
1K
stapel
stapel
W
Fermenter Vent Problem
Replies
1
Views
1K
stapel
stapel
K
"Find y and x such that by + ax = gcd(a,b) in the Gaussian integers"
Replies
1
Views
1K
barrick
B
T
Residues, describing contours: Find res[exp(1/z)/z^2-16,4], res[exp(1/z)/z^2-16,-4],
Replies
3
Views
1K
tkhunny
tkhunny
P
Supremum and Infimum of 1/n+1/m
Replies
5
Views
14K
ksdhart2
K
C
Ordinals and Godel's Incompleteness theorem
Replies
0
Views
964
Crispin
C
S
Recurrence relation for quaternary strings length n sum divisible by 3
Replies
1
Views
1K
barrick
B
S
What function/equation describes this plot?
Replies
4
Views
1K
gregk
G
S
infinitely easy: Infinity of numbers between 0&1; give 1st 2 after 0, last 2 before 1
Replies
2
Views
1K
JeffM
J
M
Let a be least residue modulo 5. Compute the least residue of a^5 for each a.
Replies
1
Views
1K
tkhunny
tkhunny
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