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math.NT2011
On bi-unitary harmonic numbers
Jozsef Sandor
We introduce notions of bi-unitary, bi*-unitary and bi**-unitary harmonic numbers, along with their preliminary study.
math.NT2011★ 1 cited
Inequalities for multiplicative arithmetic functions
Jozsef Sandor
We study arithmetic inequalities for multiplicative, sub(super)-multiplicative, sub(super)-homogeneous functions. Applications for the classical arithmetic functions are pointed ou…