Construction of multi-soliton solutions for semilinear equations in dimension 3
- Series
- PDE Seminar
- Time
- Tuesday, March 4, 2025 - 15:30 for 1 hour (actually 50 minutes)
- Location
- Skiles 005
- Speaker
- Istvan Kadar – Princeton University – ik4946@princeton.edu
The existence of multi black hole solutions in General Relativity is one of the expectations from the final state conjecture, the analogue of soliton resolution. In this talk, I will present preliminary works in this direction via a semilinear model, the energy critical wave equation, in dimension 3. In particular, I show 1) an algorithm to construct approximate solutions to the energy critical wave equation that converge to a sum of solitons at an arbitrary polynomial rate in (t-r); 2) a robust method to solve the remaining error terms for the nonlinear equation. The methods apply to energy supercritical problems.