Stack Exchange Network

Stack Exchange network consists of 180 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Loading…
    • Tour Start here for a quick overview of the site
    • Help Center Detailed answers to any questions you might have
    • Meta Discuss the workings and policies of this site
    • About Us Learn more about Stack Overflow the company
    • Business Learn more about our products
  1. current community

    • MathOverflow
      help chat
    • MathOverflow Meta

    your communities

    Sign up or log in to customize your list.

    more stack exchange communities

    company blog
  2. Log in
  3. Sign up
MathOverflow
  1. Home
    1. Public
    2. Questions
    3. Tags
    4. Users
    5. Unanswered
user avatar
user avatar
user avatar
Yagger
  • Member for 3 years, 9 months
  • Last seen this week
  • Spain
  • Meta user
  • Network profile
Profile Activity
Stats
101
reputation
0
reached
0
answers
0
questions
Communities
View all
  • Mathematics
    2.4k
  • Stack Overflow
    111
  • Stack Overflow en español
    101
  • Academia
    101
  • MathOverflow
    101
Badges
This user doesn’t have any gold badges yet.
This user doesn’t have any silver badges yet.
1
bronze badge
  •  
    Supporter
    Dec 27, 2019
Posts

This user hasn’t posted yet.

Top network posts
View all network posts
31
Is there a fast way to prove a tridiagonal matrix is positive definite?
14
If $\| \alpha(s) \| \leq \| \alpha(s_0) \| = R$, then the curvature $k(s_0)$ is greater than $1/R$
7
Proving $ \lim_{(x,y) \to (0,0)} \frac{x^2y}{x^2+|y|}=0$
5
Understanding theorem 15.12 in Kosniovski's A first course in algebraic topology
MathOverflow
  • Tour
  • Help
  • Chat
  • Contact
  • Feedback
Company
  • Stack Overflow
  • Teams
  • Advertising
  • Collectives
  • Talent
  • About
  • Press
  • Legal
  • Privacy Policy
  • Terms of Service
  • Cookie Settings
  • Cookie Policy
Stack Exchange Network
  • Technology
  • Culture & recreation
  • Life & arts
  • Science
  • Professional
  • Business
  • API
  • Data
  • Blog
  • Facebook
  • Twitter
  • LinkedIn
  • Instagram

Site design / logo © 2022 Stack Exchange Inc; user contributions licensed under cc by-sa. rev 2022.6.27.42459

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.