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Advanced Math
For the highest-level (post-calculus) math questions that don't fall into any other category.
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G
Group Theory: beginner comprehension issues with basic definition
GuyN
Jun 24, 2023
Replies
5
Views
351
Jun 26, 2023
Steven G
V
Let (V ; <,>) be a Euclidean space and let x, y and z be nonzero vectors of V . Prove that:
vicsan21
Jun 11, 2023
Replies
8
Views
420
Jun 26, 2023
blamocur
R
Projectile Motion Question
robbo
Jun 20, 2023
Replies
4
Views
405
Jun 22, 2023
robbo
R
R
Natural deduction - proving that (p&q) => p is a tautology without truth tables
r2vven
Jun 20, 2023
Replies
2
Views
328
Jun 20, 2023
blamocur
V
I need help: Consider the matrix B(x) = (x,1;1,x) and let n ≥ 2 be an integer. Calculate the product of matrices B(2)B(3) · · · B(n).
vicsan21
Jun 11, 2023
Replies
4
Views
469
Jun 18, 2023
blamocur
G
A problem on matrix exponentials: ${{e}^{AB}}$ and ${{({{e}^{A}})}^{B}}$
guarcien
Jun 11, 2023
Replies
1
Views
305
Jun 13, 2023
topsquark
G
A new statement of the previous problem about matrix exponentials
guarcien
Jun 13, 2023
Replies
2
Views
204
Jun 13, 2023
blamocur
R
p premier p≥3 find p : 2^[(p-1)/2] ≡ 1[p]
RMOURAD
Jun 8, 2023
Replies
6
Views
438
Jun 12, 2023
khansaheb
K
game theory - game of tags
shahar
Jun 8, 2023
Replies
2
Views
485
Jun 8, 2023
Dr.Peterson
B
Intersection of two subgroups: Why is it necessarilly true that intersection is a subgroup?
Boi
Jun 5, 2023
Replies
6
Views
532
Jun 6, 2023
khansaheb
K
M
What are the elements of order 3 in additive group Z/3Z × Z/6Z ? Surjective group homomorphism ((Q,+) -> (Q^+\{0},x)?
MATH14
May 30, 2023
Replies
5
Views
324
Jun 1, 2023
blamocur
O
Image of a complex valued function: Let f : C \ {-1} -> C \ {1}, A = {z in C | R(z) > 0}, and...
Ozma
May 30, 2023
Replies
2
Views
337
May 30, 2023
Ozma
O
M
Matrices, trees and contruction: Construct a stochastic matrix M containing the probabilities of...
MagdaLena
May 27, 2023
Replies
2
Views
241
May 30, 2023
blamocur
F
Discovery-factorization
FAIZE
May 11, 2023
Replies
16
Views
770
May 23, 2023
NotJeffM
N
B
Please, check my proof that smallest natural number "e" where a^e=1(mod p) must divide (p-1)
Boi
May 19, 2023
Replies
2
Views
440
May 21, 2023
Boi
B
L
(Graph theory) Are these graphs isomorphic?
lenkskendi
May 11, 2023
Replies
1
Views
310
May 11, 2023
Dr.Peterson
R
Logic, Inference, consequence (propositional logic) - basic question
Rembrandt
Mar 13, 2023
Replies
13
Views
757
May 8, 2023
OB1M
O
R
Never be a perfect power: Prove 11a^(2m) + 18a + 25 = z^n is impossible, for a an odd integer, m >= 0, n > 1
Rajesh
Apr 28, 2023
Replies
9
Views
385
May 3, 2023
Steven G
O
f differentiable function with f'(x) non zero and f(x) -> +infinity as x->a+, does this imply f decreasing in a right neighborhood of a?
Ozma
May 2, 2023
Replies
2
Views
309
May 2, 2023
Ozma
O
T
Proving that A/B=C: A is set of all integers, B = {x = 2n+5, n an integer}, C = {x = -2m, m an integer}
tbramer
Apr 26, 2023
Replies
2
Views
380
Apr 26, 2023
Steven G
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