Question

Maximum of a product of absolute values

score 164 · Answer 1 · 2026-04-09 00:07:19

164

Views

Maximum of a product of absolute values

Published on 09 Apr 2026 - 0:07

score 74 · Answer 2 · 2026-03-29 10:07:46

74

Views

determine possible values of a which k is a continuous function and differentiable function

Published on 29 Mar 2026 - 10:07

score 203 · Answer 3 · 2026-04-09 03:40:01

203

Views

What's the image of the function $f(x)=(3x+2^{v_2(x)})$ on the Prufer 2-group?

Published on 09 Apr 2026 - 3:40

score 175 · Answer 4 · 2026-03-25 01:21:36

175

Views

Proving bijectivity by finding "the inverse".

Published on 25 Mar 2026 - 1:21

score 185 · Answer 5 · 2026-04-10 12:10:42

185

Views

The minimum number of points where $f''(x)$ vanishes on $[0,2]$ is?

Published on 10 Apr 2026 - 12:10

score 60 · Answer 6 · 2026-04-11 02:04:01

60

Views

Difference between integrals

Published on 11 Apr 2026 - 2:04

score 69 · Answer 7 · 2026-04-09 01:41:10

69

Views

How to solve this kind of function equation

Published on 09 Apr 2026 - 1:41

score 760 · Answer 8 · 2026-04-09 21:29:30

760

Views

How to solve the functional equation $f(x + f(x +y ) ) = f(2x) + y$?

Published on 09 Apr 2026 - 21:29

score 584 · Answer 9 · 2026-04-09 02:02:00

584

Views

Inverse of a map $T_{(p,q)}(X \times Y) \to T_p X \times T_p Y$

Published on 09 Apr 2026 - 2:02

score 114 · Answer 10 · 2026-04-09 00:57:12

114

Views

Proofs on Isomorphism Problems

Published on 09 Apr 2026 - 0:57

score 713 · Answer 11 · 2026-04-01 21:51:45

713

Views

Examples for $\max\{f(x)+g(x)\}\leq \max{f(x)}+ \max{g(x)}$ and $\min\{f(x)+g(x)\}\geq\min{f(x)}$+min{g(x)}.

Published on 01 Apr 2026 - 21:51

score 357 · Answer 12 · 2026-04-10 12:10:45

357

Views

$f^{-1}(f(E))=E$ implies $f$ is one-to-one

Published on 10 Apr 2026 - 12:10

score 2.6k · Answer 13 · 2026-04-10 12:10:43

2.6k

Views

If $f$ is one-to-one, does the image of the complement equal the complement of the image?

Published on 10 Apr 2026 - 12:10

score 132 · Answer 14 · 2026-04-10 12:10:43

132

Views

Difference of Function of Sets Equals Function of Difference of Sets Implies One to One

Published on 10 Apr 2026 - 12:10

score 110 · Answer 15 · 2026-04-10 12:10:43

110

Views

Let function $g:A\to A$, $\:\:\:g^{2016}=g\circ g\circ g...\circ g=id_A$ , Prove that $g$ is Inverse function

Published on 10 Apr 2026 - 12:10

List Question

Maximum of a product of absolute values

determine possible values of a which k is a continuous function and differentiable function

What's the image of the function $f(x)=(3x+2^{v_2(x)})$ on the Prufer 2-group?

Proving bijectivity by finding "the inverse".

The minimum number of points where $f''(x)$ vanishes on $[0,2]$ is?

Difference between integrals

How to solve this kind of function equation

How to solve the functional equation $f(x + f(x +y ) ) = f(2x) + y$?

Inverse of a map $T_{(p,q)}(X \times Y) \to T_p X \times T_p Y$

Proofs on Isomorphism Problems

Examples for $\max\{f(x)+g(x)\}\leq \max{f(x)}+ \max{g(x)}$ and $\min\{f(x)+g(x)\}\geq\min{f(x)}$+min{g(x)}.

$f^{-1}(f(E))=E$ implies $f$ is one-to-one

If $f$ is one-to-one, does the image of the complement equal the complement of the image?

Difference of Function of Sets Equals Function of Difference of Sets Implies One to One

Let function $g:A\to A$, $\:\:\:g^{2016}=g\circ g\circ g...\circ g=id_A$ , Prove that $g$ is Inverse function

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