TY  - JOUR
AU  - B. N. Khabibullin
TI  - Excess of systems of exponentials in a~domain, and directional convexity deficiency of a~curve
JO  - Algebra i analiz
PY  - 2001
SP  - 193
EP  - 236
VL  - 13
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_2001_13_6_a4/
LA  - ru
ID  - AA_2001_13_6_a4
ER  -