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kleinbottle

Member for 5 years
Last seen this week

Summary

Reputation

841

841
448
55

2021
2022
2023
2024

Top tag

graph-theory

Next privilege

1,000 Rep.

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6

15

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Caucus

Next badge

22/30

Inquisitive

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~8k

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0

posts edited

0

helpful flags

61

votes cast

Questions

View all 35 questions

6

Induction in graph theory

Jul 7, 2022

3

Determining whether a $k$-graph has a perfect matching is NP hard.

Dec 9, 2022

3

Every open subset of $\mathbb{C}$ is countable union of compact subsets

Sep 15, 2020

3

$f : \mathbb{R} \to \mathbb{R}$ is continuous iff $\{(x,y):y\lt f(x)\}$ and $\{(x,y):y\gt f(x)\}$ are both open sets in $\mathbb R^2$

Nov 13, 2020

3

Real symmetric matrix of rank $n-1$ has a submatrix of rank $n-1$

Nov 16, 2020

Answers

View all 13 answers

4

Prove that $\dfrac {2x+y+z}{x}+\dfrac {2y+x+z}{y}+\dfrac {2z+x+y}{z}\ge 12$

Aug 21, 2023

3

Coloring of $K_n$ with red and blue st. each vertex is incident with $\frac{n-1}{2}$ blue edges

Jun 5, 2023

2

Prove that $\ln x\leq\frac{x^{\frac{x+\sqrt{x}+1}{2\sqrt{x}}}-1}{\sqrt{x}}$ for all positive real numbers

Aug 21, 2023

2

What is the term for two vectors pointed 180 degrees apart?

Nov 25, 2022

2

Graph with at least 2 degrees must contain a cycle

Nov 25, 2022

Tags

View all 53 tags

graph-theory

6

Score

18

posts

inequality

6

Score

3

posts

discrete-mathematics

5

Score

3

posts

geometry

4

Score

2

posts

coloring

3

Score

2

posts

Reputation

+10

Coloring of $K_n$ with red and blue st. each vertex is incident with $\frac{n-1}{2}$ blue edges

+10

Probability of an edge to be crossing

+10

Induction in graph theory

+10

Determine if a group is simple from character table

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Aug 20
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Oct 14, 2023

15

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Jan 20, 2023
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Jan 20, 2022
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Nov 8, 2020

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Votes cast

57

upvotes

4

downvotes

6

question votes

55

answer votes