Volume 2 ▶ Number 1 ▷ Number 2 ▷ Number 3 ▷ Number 4
Preface
Editorial. Page 1
Aldo Peretti
On one generalization of the Fibonacci sequence. Part IV: Multiplicity roots of the characteristic equation
Original research paper. Pages 3–7
Peter G. Georgiev and Krassimir T. Atanassov
On one generalization of the Fibonacci sequence. Part V: Some examples
Original research paper. Pages 8–13
Peter G. Georgiev and Krassimir T. Atanassov
On one generalization of the Fibonacci sequence. Part VI: Some other examples
Original research paper. Pages 14–17
Peter G. Georgiev and Krassimir T. Atanassov
A combinatorial summation identity for polygonal numbers
Original research paper. Pages 18–20
R. S. Melham and A. G. Shannon
A set-method for representation of the solutions of some Diophantine equations and some of its applications
Original research paper. Pages 21–26
Krassimir T. Atanassov
On the solutions of tm + tn = tx and tm − tn = ty
Original research paper. Pages 27–29
Krassimir T. Atanassov
One property of ψ function
Original research paper. Pages 30–31
Vassia K. Atanassova
A generalization of an arithmetic function
Original research paper. Pages 32–33
Krassimir T. Atanassov
Two extremal problems
Original research paper. Pages 34–37
Krassimir T. Atanassov
Four extremal problems
Original research paper. Pages 38–40
Krassimir T. Atanassov
The numbers which cannot be values of Euler’s function φ
Original research paper. Pages 41–48
Mladen Vassilev-Missana
Remarks on prime numbers
Original research paper. Pages 49–51
Krassimir T. Atanassov
New integer functions related to ϕ and σ functions. V
Original research paper. Pages 52–55
Krassimir T. Atanassov
Remark on set FA
Original research paper. Pages 56–57
Krassimir T. Atanassov
Two variants of the concept “Logarithmic progression”
Original research paper. Pages 58–60
Krassimir T. Atanassov