### Derivative estimates for elliptic systems from composite material

- Series
- PDE Seminar
- Time
- Tuesday, October 16, 2018 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Prof. Yanyan Li – Rutgers University – yyli@math.rutgers.edu

We give derivative estimates for solutions to divergence form elliptic equations with piecewise
smooth coefficients. The novelty of these estimates is that, even though they depend on the shape
and on the size of the surfaces of discontinuity of the coefficients, they are independent of the
distance between these surfaces.