TY - JOUR AU - J., Tamarkin TI - Some general problems of the theory of ordinary linear diffe-rential equations and expansion of an arbitrary function in series of funda-mental functions JO - Mathematische Zeitschrift PY - 1928 SP - 1 EP - 54 VL - 27 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1928__27_167963/ LA - en ID - MZ_1928__27_167963 ER -