Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
M
Supremum / Infimum of pair of elements on a Hasse Diagram
Replies
11
Views
3K
pka
pka
F
Speed of Creek Water
Replies
5
Views
901
HallsofIvy
H
E
Maximal ideals in the ring Z[x]
Replies
0
Views
459
ETK
E
Cratylus
Need help with maximal theorem
Replies
5
Views
951
Cratylus
Cratylus
M
series sum
Replies
1
Views
388
Steven G
Steven G
C
Convolution between two gaussian
Replies
0
Views
360
Corallo
C
S
Regular normal subgroups.
Replies
0
Views
437
STF92
S
Z
A functional analysis problem related to representation by orthonormal sequence in a Hilbert space
Replies
3
Views
931
zzzhhh2
Z
T
prime numbers whose digits are in strictly ascending order
Replies
19
Views
3K
Tamás-Haim
T
Cratylus
How to show 2 functions are an isomorphism
Replies
2
Views
475
Cratylus
Cratylus
G
Let f:D -> R be a continuous function. Let {x_{n}} be a sequence in D that converges to x in D. Then f(X_{n}) -> f(x)
Replies
2
Views
450
Dr.Peterson
Dr.Peterson
G
Courant and Fritz, Constructing the real numbers
Replies
3
Views
630
JeffM
J
G
Cluster point, a, and bounded f, f(a) <= y
Replies
8
Views
905
G-X
G
O
diffusion-driven instability conditions
Replies
4
Views
523
yoscar04
yoscar04
W
gamma function Query in Schaum’s .
Replies
5
Views
1K
William Frederick
W
Filetmignon9797
My question is ¿ QUESTION: 5 X 2 + 7* ?
Replies
9
Views
2K
Dr.Peterson
Dr.Peterson
G
N is an infinite subset of R with no cluster point
Replies
2
Views
899
G-X
G
G
0 is a cluster point of E^c
Replies
8
Views
773
G-X
G
A
Optimization of an objective function with probabilistic multipliers.
Replies
2
Views
499
avvicena
A
G
Is G open in R^2
Replies
2
Views
430
pka
pka
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