Question

Lawvere - Conceptual Mathematics - Criterion for decomposition of a map into two pieces

score 108 · Answer 1 · 2026-05-03 12:16:14

108

Views

Lawvere - Conceptual Mathematics - Criterion for decomposition of a map into two pieces

Published on 03 May 2026 - 12:16

score 707 · Answer 2 · 2026-04-14 07:00:14

707

Views

Why if $B=M^{-1}AM$ the columns of $M$ are eigenvectors of $A$?

Published on 14 Apr 2026 - 7:00

score 218 · Answer 3 · 2026-04-10 00:35:54

218

Views

Discrete math: Big O notation proof with logarithms

Published on 10 Apr 2026 - 0:35

score 198 · Answer 4 · 2026-04-12 09:07:24

198

Views

Is my proof of irreducibility of ${(x - a_1)}^2{(x - a_2)}^2 \; \cdots \; {(x - a_n)}^2 + 1$ over $\mathbb{Z}$ correct?

Published on 12 Apr 2026 - 9:07

score 198 · Answer 5 · 2026-04-14 01:49:32

198

Views

Show $A = \{f \in C([0,1]): f(x) > 0 \forall x \in [0,1] \}$ is open w.r.t sup norm: $\|f\|_{\infty, [0,1]} = sup_{x \in[0,1]}|f(x)|$ Pf Verification

Published on 14 Apr 2026 - 1:49

score 55 · Answer 6 · 2026-04-14 09:39:25

55

Views

Question on convergence involving one-to-one functions

Published on 14 Apr 2026 - 9:39

score 198 · Answer 7 · 2026-04-15 03:59:11

198

Views

Why is the unique ring homomorphism $\mathbb Z[x] \to S$, where $x \mapsto s$, irrelevant of $S$ being commutative?

Published on 15 Apr 2026 - 3:59

score 68 · Answer 8 · 2026-05-16 05:24:27

68

Views

Investigate $\sum_{n\geq1}\frac{3^nx^n\left(\frac{1}{3}-x\right)}{n}$ for uniform convergence on $x\in [0, \frac{1}{3}]$: is my solution correct?

Published on 16 May 2026 - 5:24

score 73 · Answer 9 · 2026-04-15 21:33:39

73

Views

Show $D = \{f \in C^{2}[0,1]): f(x) > 0, \ \forall x \in [0,1], \|f'\|_{\infty}<1, |f''(0)| > 2\}$ is open w.r.t Sup Norm. Proof Verification

Published on 15 Apr 2026 - 21:33

score 514 · Answer 10 · 2026-04-15 12:32:39

514

Views

Could someone verify my proof that if $f:(a,b) \rightarrow \mathbb{R}$ is uniformly continuous, then $f$ is bounded?

Published on 15 Apr 2026 - 12:32

score 70 · Answer 11 · 2026-04-14 08:02:56

70

Views

Is this proof valid? Elementary number theory

Published on 14 Apr 2026 - 8:02

score 43 · Answer 12 · 2026-04-15 10:03:26

43

Views

Show that, for $n \in \mathbb{N}^{ \times}$, $\mathbb{Z}_{n}$ has exactly $n$ elements

Published on 15 Apr 2026 - 10:03

score 44 · Answer 13 · 2026-04-11 11:16:04

44

Views

Can such a predicate exist?

Published on 11 Apr 2026 - 11:16

score 523 · Answer 14 · 2026-04-13 03:11:01

523

Views

Baby Rudin Chapter $6$ Problem $8$: Proving The Integral Test for Convergence of Series

Published on 13 Apr 2026 - 3:11

score 75 · Answer 15 · 2026-04-12 10:43:28

75

Views

Question regard inverse limit ( homeomorphism)

Published on 12 Apr 2026 - 10:43

List Question

Lawvere - Conceptual Mathematics - Criterion for decomposition of a map into two pieces

Why if $B=M^{-1}AM$ the columns of $M$ are eigenvectors of $A$?

Discrete math: Big O notation proof with logarithms

Is my proof of irreducibility of ${(x - a_1)}^2{(x - a_2)}^2 \; \cdots \; {(x - a_n)}^2 + 1$ over $\mathbb{Z}$ correct?

Show $A = \{f \in C([0,1]): f(x) > 0 \forall x \in [0,1] \}$ is open w.r.t sup norm: $\|f\|_{\infty, [0,1]} = sup_{x \in[0,1]}|f(x)|$ Pf Verification

Question on convergence involving one-to-one functions

Why is the unique ring homomorphism $\mathbb Z[x] \to S$, where $x \mapsto s$, irrelevant of $S$ being commutative?

Investigate $\sum_{n\geq1}\frac{3^nx^n\left(\frac{1}{3}-x\right)}{n}$ for uniform convergence on $x\in [0, \frac{1}{3}]$: is my solution correct?

Show $D = \{f \in C^{2}[0,1]): f(x) > 0, \ \forall x \in [0,1], \|f'\|_{\infty}<1, |f''(0)| > 2\}$ is open w.r.t Sup Norm. Proof Verification

Could someone verify my proof that if $f:(a,b) \rightarrow \mathbb{R}$ is uniformly continuous, then $f$ is bounded?

Is this proof valid? Elementary number theory

Show that, for $n \in \mathbb{N}^{ \times}$, $\mathbb{Z}_{n}$ has exactly $n$ elements

Can such a predicate exist?

Baby Rudin Chapter $6$ Problem $8$: Proving The Integral Test for Convergence of Series

Question regard inverse limit ( homeomorphism)

Trending Questions

Popular # Hahtags

Popular Questions