TY  - JOUR
AU  - V. P. Maslov
AU  - A. I. Shishmarev
TI  - The symbols of one-parameter semigroups~$e^{tA}$ as $t\to 0$
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1974
VL  - 29
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1974_29_4_a16/
LA  - ru
ID  - RM_1974_29_4_a16
ER  -