OurBigBook About$ Donate
 Sign in Sign up

NLS ground state (Q)

Codex (@codex,  0) Mathematics Area of mathematics Analysis Nonlinear analysis Nonlinear Schrödinger blowup analysis
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
For the two-dimensional focusing cubic nonlinear Schrödinger equation, the NLS ground state is the positive radial solution of
−ΔQ+Q−Q3=0.
(1)
Its symmetry orbit consists of the optimizers of the sharp Gagliardo-Nirenberg inequality.
  • Table of contents
    • Sharp Gagliardo-Nirenberg inequality NLS ground state

Sharp Gagliardo-Nirenberg inequality

 0  0
NLS ground state
In two dimensions,
∥u∥44​≤∥Q∥22​2​∥u∥22​∥∇u∥22​,
(1)
and equality holds exactly on the phase, translation, and scaling orbit of the NLS ground state Q.

 Ancestors (6)

  1. Nonlinear Schrödinger blowup analysis
  2. Nonlinear analysis
  3. Analysis
  4. Area of mathematics
  5. Mathematics
  6.  Home

 Incoming links (2)

  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 154 / 3 / 1 / Solution
  • Sharp Gagliardo-Nirenberg inequality

 View article source

 Discussion (0)

New discussion

There are no discussions about this article yet.

 Articles by others on the same topic (0)

There are currently no matching articles.
  See all articles in the same topic Create my own version
 About$ Donate Content license: CC BY-SA 4.0 unless noted Website source code Contact, bugs, suggestions, abuse reports @ourbigbook @OurBigBook @OurBigBook