Skip to main content
Mathematics
zjs's user avatar
zjs's user avatar
zjs's user avatar
zjs
  • Member for 5 years, 9 months
  • Last seen this week
  • New Jersey, USA
Profile Activity
Stats
1,147
reputation
8k
reached
29
answers
28
questions
Communities
View all
Badges
View all badges
This user doesn’t have any gold badges yet.
5
silver badges
9
bronze badges
Top tags
View all tags
9
Score
4
Posts
7
Posts %
5
Score
5
Posts
9
Posts %
5
Score
3
Posts
5
Posts %
5
Score
3
Posts
5
Posts %
4
Score
4
Posts
7
Posts %
3
Score
3
Posts
5
Posts %
Top posts
View all questions and answers
6
Effective resistance in finite grid of resistors
Jun 1, 2023
5
Solving the equation $\{a^{-1}\}=\{a^2\}$
Aug 24, 2021
4
Is $\mathbb{Z}[i,\varphi]$ a Euclidean domain?
Jan 11, 2021
4
Direct limit and amalgamation (Serre's "Trees")
Apr 29, 2021
3
Prove: $\det(I+A) = 2^{\text{rank}(A)}$ if $A$ is a square idempotent matrix. Find $(I+A)^{-1}$ such that the expression doesn't have inverses.
Sep 20, 2021
3
Function is trivial endomorphism
Oct 6, 2020
3
Chebyshev coefficients of Chebyshev interpolants
May 5, 2022
3
Proof of discrete Hodge decomposition
Dec 8, 2021
3
Absolute spectral gap of simple random walk on box (Levin–Peres–Wilmer exercise 13.2)
Feb 25, 2022
3
Short question about $|\int_{a}^{b}f(x)dx|=\int_{a}^{b}|f(x)|dx$
Mar 4, 2021
Top network posts
View all network posts
10
Topology diagrams (labelled edges)
9
Is $\mathbb{Z}[i,\varphi]$ a Euclidean domain?
9
What kinds of objects are Liouvillian, Lindbladian, and Davies generator?
8
Automorphisms of Lubotzky–Phillips–Sarnak graphs
5
Is $\mathbb{Z}[i,\varphi]$ a Euclidean domain?