User Jesse Elliott

31 votes

An example of a beautiful proof that would be accessible at the high school level?

answered Sep 8, 2011 at 10:39

14 votes

What is the most "concrete-feeling" equivalent formulation of the Continuum Hypothesis that you can think of?

answered Nov 26, 2023 at 5:49

12 votes

Examples of seemingly elementary problems that are hard to solve?

answered Sep 18, 2011 at 3:31

12 votes

Accepted

Some questions about the ring Z((x))

answered Jan 16, 2015 at 11:44

11 votes

What is the most "concrete-feeling" equivalent formulation of the Continuum Hypothesis that you can think of?

answered Nov 26, 2023 at 5:37

8 votes

Accepted

UFD property for power series in characteristic 0

answered Nov 23 at 5:10

7 votes

Is there any deep philosophy or intuition behind the similarity between $\pi/4$ and $e^{-\gamma}$?

answered Nov 7, 2023 at 9:22

7 votes

Concept associated to the Eudoxus reals

answered Sep 16, 2023 at 23:21

6 votes

Accepted

Asymptotics on sum of n/rad(n)

answered Aug 26, 2023 at 9:00

6 votes

Characterizations of UFD and Euclidean domain by ideal-theoretic conditions

answered Feb 24, 2018 at 23:10

6 votes

Is every locally free module of rank $1$ over a commutative ring concretely invertible?

answered Dec 22, 2019 at 1:07

6 votes

Algorithm for Weierstrass Preparation Theorem for Formal Power Series

answered Aug 18, 2011 at 3:14

6 votes

Accepted

Domains $D$ for which for any prime $P$, $D_P$ is a PID

answered Dec 30, 2013 at 8:34

6 votes

Accepted

Primes which are safe and Sophie Germain

answered Nov 18 at 23:48

5 votes

Algebraic theorems with no known algebraic proofs

answered Nov 20 at 2:00

5 votes

A question on non noetherian ring

answered Feb 1, 2014 at 11:19

5 votes

Accepted

Are there multiplicative functions which are not rational?

answered Jan 22, 2016 at 8:40

4 votes

Applications of finite continued fractions

answered Jan 18, 2014 at 6:41

4 votes

Dirichlet series of the reciprocal radical function

answered Aug 26, 2023 at 4:30

4 votes

Integral domains equal to intersection of their height one localizations

answered Dec 3 at 0:45

3 votes

Accepted

Weak approximation in Krull domains

answered Nov 16 at 1:25

3 votes

Accepted

Example of fractional ideal whose inverse does not commute with localization

answered Feb 5, 2015 at 10:39

3 votes

Intersection of powers of prime ideals

answered Feb 7, 2015 at 3:48

3 votes

Accepted

Localisation of $\mathbb{Z}_p[[X]]$ at ideal $(p)$

answered Jan 28, 2014 at 6:12

3 votes

Is beauty at the high school level even possible?

answered Sep 20, 2011 at 10:29

2 votes

Accepted

Generic methods to check irreducibility of polynomials in $K[[X,Y]]$

answered Dec 30, 2013 at 9:02

2 votes

non-Noetherian r-Noetherian ring with Noetherian total quotient ring

answered Feb 20, 2016 at 10:08

2 votes

injective modules and divisible modules

answered Oct 16, 2016 at 7:46

2 votes

Accepted

Reducedness of a ring with prime nilradical

answered Jan 22, 2015 at 6:20

2 votes

About the Dimension of a complete local ring

answered Oct 4, 2014 at 4:14

Stack Exchange Network

44 Answers

An example of a beautiful proof that would be accessible at the high school level?

What is the most "concrete-feeling" equivalent formulation of the Continuum Hypothesis that you can think of?

Examples of seemingly elementary problems that are hard to solve?

Some questions about the ring Z((x))

What is the most "concrete-feeling" equivalent formulation of the Continuum Hypothesis that you can think of?

UFD property for power series in characteristic 0

Is there any deep philosophy or intuition behind the similarity between $\pi/4$ and $e^{-\gamma}$?

Concept associated to the Eudoxus reals

Asymptotics on sum of n/rad(n)

Characterizations of UFD and Euclidean domain by ideal-theoretic conditions

Is every locally free module of rank $1$ over a commutative ring concretely invertible?

Algorithm for Weierstrass Preparation Theorem for Formal Power Series

Domains $D$ for which for any prime $P$, $D_P$ is a PID

Primes which are safe and Sophie Germain

Algebraic theorems with no known algebraic proofs

A question on non noetherian ring

Are there multiplicative functions which are not rational?

Applications of finite continued fractions

Dirichlet series of the reciprocal radical function

Integral domains equal to intersection of their height one localizations

Weak approximation in Krull domains

Example of fractional ideal whose inverse does not commute with localization

Intersection of powers of prime ideals

Localisation of $\mathbb{Z}_p[[X]]$ at ideal $(p)$

Is beauty at the high school level even possible?

Generic methods to check irreducibility of polynomials in $K[[X,Y]]$

non-Noetherian r-Noetherian ring with Noetherian total quotient ring

injective modules and divisible modules

Reducedness of a ring with prime nilradical

About the Dimension of a complete local ring