User Dave L Renfro - MathOverflow

35 votes

Does every real function have this weak continuity property?

answered Aug 24, 2018 at 17:50

19 votes

Accepted

General topological space with closure operation as in Russian translation of Hausdorff's 1914 and 1927 Mengenlehre

answered Oct 8, 2019 at 9:36

18 votes

Why isn't integral defined as the area under the graph of function?

answered Jan 29, 2019 at 13:44

18 votes

Short papers for undergraduate course on reading scholarly math

answered Mar 21, 2018 at 0:00

18 votes

Is there a maximum to the amount of disjoint non-measurable subsets of the unit interval with full outer measure?

answered Jan 23, 2013 at 21:32

17 votes

Accepted

differential equation of conics

answered Sep 29, 2016 at 19:52

15 votes

A search for theorems which appear to have very few, if any hypotheses

answered Feb 17, 2016 at 21:39

15 votes

Reference request: Examples of research on a set with interesting properties which turned out to be the empty set

answered Nov 10, 2020 at 16:50

9 votes

Accepted

Are “most” bounded derivatives not Riemann integrable?

answered Nov 30, 2023 at 11:34

9 votes

Accepted

How can dimension depend on the point?

answered Aug 10, 2015 at 19:03

9 votes

General topological space with closure operation as in Russian translation of Hausdorff's 1914 and 1927 Mengenlehre

answered Oct 8, 2019 at 9:38

9 votes

General topological space with closure operation as in Russian translation of Hausdorff's 1914 and 1927 Mengenlehre

answered Oct 8, 2019 at 9:40

8 votes

Is it known how the Sigma Algebra generated by Jordan measurable sets compares to universally measurable sets and analytic sets?

answered Nov 23, 2018 at 22:26

8 votes

Smallest positive zero of Weierstrass nowhere differentiable function

answered Apr 6, 2014 at 14:49

8 votes

Accepted

How large can the set of turbulent points be?

answered Oct 9, 2024 at 20:55

7 votes

Accepted

Points of differentiability of $f(x) = \sum\limits_{n : q_n < x} c_n$

answered Sep 13, 2016 at 18:02

7 votes

What are some examples of colorful language in serious mathematics papers?

answered Jun 14, 2011 at 20:43

7 votes

Baire class 1 and discontinuities

answered Oct 29, 2020 at 16:18

6 votes

Accepted

Box dimension of the graph of an increasing function

answered Mar 17, 2019 at 20:01

6 votes

Accepted

Functions that are approximately differentiable a.e

answered Apr 5, 2018 at 14:45

6 votes

Accepted

Is there a gap between the Hausdorff and the lower Minkowski dimensions?

answered Jun 28, 2017 at 21:03

6 votes

Accepted

Countably infinite connected Hausdorff space with the fixed point property

answered Nov 19, 2017 at 20:10

6 votes

Accepted

Stone topological Boolean algebras

answered Feb 23, 2018 at 19:26

6 votes

Magnitude of Graham's Number?

answered Sep 2, 2011 at 20:37

6 votes

Newton and Newton polygon

answered Sep 9, 2011 at 15:24

5 votes

Regularity of lipschitz and derivable function

answered Sep 13, 2022 at 14:52

4 votes

A function that maps every perfect set to $\mathbb{R}$

answered Apr 11, 2024 at 22:54

4 votes

Accepted

Baire class 1 and (uncountably many) discontinuities

answered Mar 30, 2021 at 15:59

4 votes

Unique limits of sequences plus what implies Hausdorff?

answered Sep 12, 2011 at 14:15

4 votes

Characterization of angles trisectable with straightedge and compass

answered Jan 21, 2014 at 20:52

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43 Answers

Does every real function have this weak continuity property?

General topological space with closure operation as in Russian translation of Hausdorff's 1914 and 1927 Mengenlehre

Why isn't integral defined as the area under the graph of function?

Short papers for undergraduate course on reading scholarly math

Is there a maximum to the amount of disjoint non-measurable subsets of the unit interval with full outer measure?

differential equation of conics

A search for theorems which appear to have very few, if any hypotheses

Reference request: Examples of research on a set with interesting properties which turned out to be the empty set

Are “most” bounded derivatives not Riemann integrable?

How can dimension depend on the point?

General topological space with closure operation as in Russian translation of Hausdorff's 1914 and 1927 Mengenlehre

General topological space with closure operation as in Russian translation of Hausdorff's 1914 and 1927 Mengenlehre

Is it known how the Sigma Algebra generated by Jordan measurable sets compares to universally measurable sets and analytic sets?

Smallest positive zero of Weierstrass nowhere differentiable function

How large can the set of turbulent points be?

Points of differentiability of $f(x) = \sum\limits_{n : q_n < x} c_n$

What are some examples of colorful language in serious mathematics papers?

Baire class 1 and discontinuities

Box dimension of the graph of an increasing function

Functions that are approximately differentiable a.e

Is there a gap between the Hausdorff and the lower Minkowski dimensions?

Countably infinite connected Hausdorff space with the fixed point property

Stone topological Boolean algebras

Magnitude of Graham's Number?

Newton and Newton polygon

Regularity of lipschitz and derivable function

A function that maps every perfect set to $\mathbb{R}$

Baire class 1 and (uncountably many) discontinuities

Unique limits of sequences plus what implies Hausdorff?

Characterization of angles trisectable with straightedge and compass