Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
G
A new statement of the previous problem about matrix exponentials
Replies
2
Views
354
blamocur
blamocur
R
p premier p≥3 find p : 2^[(p-1)/2] ≡ 1[p]
Replies
6
Views
659
khansaheb
K
shahar
game theory - game of tags
Replies
2
Views
750
Dr.Peterson
Dr.Peterson
B
Intersection of two subgroups: Why is it necessarilly true that intersection is a subgroup?
Replies
6
Views
766
khansaheb
K
M
What are the elements of order 3 in additive group Z/3Z × Z/6Z ? Surjective group homomorphism ((Q,+) -> (Q^+\{0},x)?
Replies
5
Views
540
blamocur
blamocur
O
Image of a complex valued function: Let f : C \ {-1} -> C \ {1}, A = {z in C | R(z) > 0}, and...
Replies
2
Views
517
Ozma
O
M
Matrices, trees and contruction: Construct a stochastic matrix M containing the probabilities of...
Replies
2
Views
344
blamocur
blamocur
F
Discovery-factorization
Replies
16
Views
1K
NotJeffM
N
B
Please, check my proof that smallest natural number "e" where a^e=1(mod p) must divide (p-1)
Replies
2
Views
639
Boi
B
L
(Graph theory) Are these graphs isomorphic?
Replies
1
Views
444
Dr.Peterson
Dr.Peterson
R
Logic, Inference, consequence (propositional logic) - basic question
Replies
13
Views
1K
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
Replies
9
Views
652
Steven G
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?
Replies
2
Views
431
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}
Replies
2
Views
566
Steven G
Steven G
C
Transfer funtions
Replies
1
Views
365
stapel
stapel
L
mechanics? (Find equation that represents moment balance at point A. Assume pos. moment is counterclockwise.)
Replies
2
Views
893
MaxMath
MaxMath
MaxMath
A random logic question—why is "if A then B" true whenever A is false?
Replies
14
Views
2K
MaxMath
MaxMath
D
Prove the statement ( that values of Mood's test statistic for equality of dispersion test differ by at least one.)
Replies
2
Views
437
Darya
D
Scott92
Sketching load beam forces: a point load of 500 N and a distributed load of 1000 N/m
Replies
16
Views
3K
Scott92
Scott92
A
Tensors: prooving ∇²*r^n
Replies
2
Views
433
anaantonia_
A
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