TY - JOUR AU - Fulling, S.A. TI - Some properties of Riesz means and spectral expansions. (With an appendix by R. A. Gustafson) JO - Electronic Journal of Differential Equations PY - 1999 VL - 1999 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a54/ LA - en ID - EJDE_1999__1999__a54 ER -