An extension of the Riemann-Lebesgue lemma and some applications. Andrica, Dorin; Piticari, Mihai — 2004 Acta Universitatis Apulensis. Mathematics - Informatics
On some extensions of Jordan's arithmetic functions. Andrica, Dorin; Piticari, Mihai — 2004 Acta Universitatis Apulensis. Mathematics - Informatics
R -sequence and applications. Andrica, Dorin; Piticari, Mihai — 2002 Acta Universitatis Apulensis. Mathematics - Informatics