User Jesse Elliott

32 votes

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

answered Sep 8, 2011 at 10:39

15 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

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

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

answered Nov 7, 2023 at 9:22

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

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

3 votes

Accepted

Example of fractional ideal whose inverse does not commute with localization

answered Feb 5, 2015 at 10:39

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

2 votes

$I$ is principal if and only if $ID_M$ is principal for all $M \in Max(D)$

answered Oct 4, 2014 at 4:57

2 votes

Intersection of powers of prime ideals

answered Feb 7, 2015 at 3:48

2 votes

Computation of fraction field of formal series over the integers

answered May 12, 2020 at 2:05

2 votes

How is it possible for PA+¬Con(PA) to be consistent?

answered Oct 6, 2023 at 7:45

1 vote

Standard models of N and R: An Alice/Bob approach

answered Nov 20, 2023 at 4:22

1 vote

Intersection of commutative factorial domains: completely integrally closed and Krull domain

answered Oct 19, 2023 at 19:31

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37 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?

Concept associated to the Eudoxus reals

Asymptotics on sum of n/rad(n)

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

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

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

Example of fractional ideal whose inverse does not commute with localization

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

$I$ is principal if and only if $ID_M$ is principal for all $M \in Max(D)$

Intersection of powers of prime ideals

Computation of fraction field of formal series over the integers

How is it possible for PA+¬Con(PA) to be consistent?

Standard models of N and R: An Alice/Bob approach

Intersection of commutative factorial domains: completely integrally closed and Krull domain