TY - JOUR AU - Gregory C. Verchota TI - Strongly elliptic linear operators without coercive quadratic forms. I. Constant coefficient operators and forms JO - Journal of the European Mathematical Society PY - 2014 SP - 2165 EP - 2210 VL - 16 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4171/jems/485/ DO - 10.4171/jems/485 ID - JEMS_2014_16_10_a3 ER -