Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
M
Transposition: Show any elt in S_n is prod. of transposition
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0
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1K
Mel
M
F
Prove sum [i=1,n+1] (i2^i) = n 2^(n+2) for all n >= 0
Replies
3
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5K
flakine
F
Q
Linear Transformations, Nullspace, Ranges??
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0
Views
1K
Qt3e_m3
Q
M
F to V Dsp: mimicking frequency to voltage converter
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5
Views
3K
Mr dsp
M
A
possible for cubic fcn to have only 2 real roots of order 1?
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6
Views
2K
daon
D
A
subspace 3: prove symm., anti-symm. matrices are subspaces
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1
Views
2K
tkhunny
tkhunny
A
subspace 2: show pts in ax+by+cz=0 is subspace of R^3
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1
Views
2K
tkhunny
tkhunny
A
subspace 1: S={upper triangular matrices}, V = {Mnxm}
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1
Views
2K
tkhunny
tkhunny
A
Determine if follow subsets are subspaces of vector space V
Replies
5
Views
3K
Apprentice123
A
S
Surface Integral: field intensity at center of cavity in
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2
Views
3K
spencer
S
A
Determine whether data sets, operations, are vector spaces.
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0
Views
1K
Apprentice123
A
C
Calculating cost - amps, watts & kwh
Replies
3
Views
11K
Chalk
C
G
Cryptology: consider Diffie-Hellman key exchange scheme with
Replies
6
Views
3K
Ghostgirl
G
P
show ideal (X^5-Z^3, X^4-Y^3, Y^5-Z^4) in poly ring k[X,Y,Z]
Replies
2
Views
2K
Denis
D
A
force needed to move 42.5 kg fridge 5 m; static friction is
Replies
6
Views
6K
alice
A
F
State converse, inverse, contrapositive of "for all y,..."
Replies
3
Views
8K
pka
pka
A
Theory? Why is (nonzero) / (zero) "undefined"?
Replies
4
Views
2K
AtWitsEnd
A
S
Abstract Algebra: find product of permutations A, B
Replies
1
Views
2K
daon
D
F
Variational Functional whose min. corresp. to non-lin. Lapla
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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
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