TY  - JOUR
AU  - J.L. Denny
AU  - C.K. Abbey
TI  - Partial Sums of Orthonormal Bases Preserving Positivity - and Martingales.
JO  - The journal of Fourier analysis and applications [[Elektronische Ressource]]
PY  - 1998
SP  - 151
VL  - 4
IS  - 2
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/JFAA_1998__4_2_59557/
LA  - un
ID  - JFAA_1998__4_2_59557
ER  -