Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
R
Normal proper subgroup if each elt has exactly 2 conjugates
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0
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1K
rawkerrxx
R
T
if p|ab (a, b whole numbers, p prime), then p|a or p|b
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7
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2K
pka
pka
F
Topological Characterization of Continuity
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5
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2K
daon
D
F
Continuous function h:R->R and K={x:h(x)=0} is closed
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3
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5K
daon
D
T
find all solutions to 2p + 1 = n^2, for n natural, p prime
2
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21
Views
6K
TchrWill
T
T
find primes P1, P2, P3 such that P1*P2*P3 = 190747
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10
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4K
Deleted member 4993
D
R
Permutation: no perm. A w/ (A^(-1))(12)(A) = (34)(15)
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0
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1K
rawkerrxx
R
D
Linear Algebra: Find length of matrix A; find basis for P3
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0
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2K
deepster
D
T
Definition: If a,b,n are integers we say that a is ...
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1
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1K
pka
pka
W
Find the dimension of the subspace of all vectors in R3
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2
Views
7K
pka
pka
M
abstract algebra - Ring Homomorphisms
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0
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1K
movest
M
W
Orthogonality: Suppose f:(a,b)->R^m is differentiable....
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3
Views
1K
stapel
stapel
F
Relations On Sets - Discrete
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1
Views
1K
pka
pka
T
orthogonal expansion in hilbert space
Replies
8
Views
2K
Denis
D
K
Proving sum of root primes is irrational.
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4
Views
3K
kazafz
K
C
G 9-reg. graph w/ p vertices; any subgraph w/ > p/2 - 1 edge
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0
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1K
chirin
C
T
Division Algorithm
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1
Views
1K
daon
D
K
Proving conjectures: if n prime, n^2+n+1; p^2+q^2 not div by
Replies
9
Views
2K
Deleted member 4993
D
F
Definition for the limit as x->infinity
Replies
1
Views
1K
mmm4444bot
mmm4444bot
C
Recursive sequence: prove convergence for every c(0)
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0
Views
1K
courteous
C
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