A. F. M. ter Elst, Manfred Sauter
Published 2013-06-30Version 1
We present a formula for the regular part of a sectorial form that represents a general linear second-order differential expression that may include lower-order terms. The formula is given in terms of the original coefficients. It shows that the regular part is again a differential sectorial form and allows to characterise when also the singular part is sectorial. While this generalises earlier results on pure second-order differential expressions, it also shows that lower-order terms truly introduce new behaviour.
Stochastic Homogenization of Parabolic Equations with Lower-order Terms
On Second-Order $L^\infty$ Variational Problems with Lower-Order Terms
The structure of the regular part of the free boundary close to singularities in the obstacle problem
![QR code for arXiv:1307.0186 [math.AP]](http://oss.arxitics.com/images/favicon.svg)