Volume 19, 2013
Number 1 Number 2 Number 3 Number 4
 
Volume 19, 2013, Number 1

Order

Title

Author(s)

Pages

1

Sum of cubes is square of sum
Download: PDF, 164 Kb

Edward Barbeau and Samer Seraj

1-13

2

On the composition of the functions σ and ϕ on the set Zs+(P*)
Download: PDF, 152 Kb

Aleksander Grytczuk

14-18

3

Note on ϕ and ψ functions
Download: PDF, 139 Kb

V. Kannan and R. Srikanth

19-21

4

Note on ϕ, ψ and σ- functions. Part 6
Download: PDF, 118 Kb

Krassimir T. Atanassov

22-24

5

Gaussian Jacobsthal and Gaussian Jacobsthal Lucas polynomials
Download: PDF, 164 Kb

Mustafa Asci and Esref Gurel

25-36

6

On integer solutions of x4 + y4 – 2z4
Download: PDF, 157 Kb

Dustin Moody and Arman Shamsi Zargar

37-43

7

New explicit formulae for the prime counting function
Download: PDF, 159 Kb

Mladen Vassilev-Missana

44-49

8

Sharp Cusa–Huygens and related inequalities
Download: PDF, 130 Kb

József Sándor

50-54

9

A note on the density of the Greatest Prime Factor
Download: PDF, 148 Kb

Rafael Jakimczuk

55-58

10

A note on Bernoulli numbers
Download: PDF, 139 Kb

Ramesh Kumar Muthumalai

59-65

11

The structure of the Fibonacci numbers in the modular ring Z5
Download: PDF, 149 Kb

J. V. Leyendekkers and A. G. Shannon

66-72

12

On new refinements of Kober’s and Jordan’s trigonometric inequalities
Download: PDF, 174 Kb

József Sándor

73-83

13

Erratum to “Short remark on Jacobsthal numbers”
Download: PDF, 74 Kb

Krassimir T. Atanassov

84

 
Volume 19, 2013, Number 2

Order

Title

Author(s)

Pages

1

On the theorem of Conrey and Iwaniec
Download: PDF, 177 Kb

Jeffrey Stopple

1-9

2

Method of infinite ascent applied on A3 ± nB2 = C3
Download: PDF, 124 Kb

Susil Kumar Jena

10-14

3

Two-term Egyptian fractions
Download: PDF, 190 Kb

Tieling Chen and Reginald Koo

15-25

4

Short remark on Möbius function
Download: PDF, 119 Kb

Krassimir T. Atanassov

26-29

5

Extension of factorial concept to negative numbers
Download: PDF, 125 Kb

A. M. Ibrahim

30-42

6

Note on some explicit formulae for twin prime counting function
Download: PDF, 144 Kb

Mladen Vassilev-Missana

43-48

7

Fibonacci and Lucas primes
Download: PDF, 132 Kb

J. V. Leyendekkers and A. G. Shannon

49-59

8

On the mean values of Dedekind sums over short intervals
Download: PDF, 167 Kb

Weixia Liu

60-68

9

Generalization of a few results in integer partitions
Download: PDF, 171 Kb

Manosij Ghosh Dastidar and Sourav Sen Gupta

69-76

10

Note on Legendre symbols connecting with certain infinite series
Download: PDF, 143 Kb

Ramesh Kumar Muthumalai

77-83

 
Volume 19, 2013, Number 3

Order

Title

Author(s)

Pages

1

Professor Anthony Shannon at F4 × F5 × F5 years
Download: PDF, 84 Kb

Krassimir T. Atanassov

1-4

2

The Pascal–Fibonacci numbers
Download: PDF, 144 Kb

J. V. Leyendekkers and A. G. Shannon

5-11

3

Pulsating Fibonacci sequence
Download: PDF, 100 Kb

Krassimir T. Atanassov

12-14

4

A note on modified Jacobsthal and Jacobsthal–Lucas numbers
Download: PDF, 144 Kb

Julius Fergy T. Rabago

15-20

5

Relations on Jacobsthal numbers
Download: PDF, 120 Kb

S. Arunkumar, V. Kannan and R. Srikanth

21-23

6

New explicit representations for the prime counting function
Download: PDF, 148 Kb

Mladen Vassilev-Missana

24-27

7

On the area and volume of a certain regular solid and the Diophantine equation 1/2 = 1/x + 1/y + 1/z
Download: PDF, 147 Kb

Julius Fergy T. Rabago and Richard P. Tagle

28-32

8

BBP-type formulas, in general bases, for arctangents of real numbers
Download: PDF, 221 Kb

Kunle Adegoke and Olawanle Layeni

33-54

9

On subsets of finite Abelian groups without non-trivial solutions of xx2 + ... + xs – sxs+1 = 0
Download: PDF, 202 Kb

Ran Ji and Craig V. Spencer

55-59

10

A note on the modified q-Dedekind sums
Download: PDF, 184 Kb

Serkan Araci, Erdoğan Şen and Mehmet Acikgoz

60-65

11

Modular zero divisors of longest exponentiation cycle
Download: PDF, 115 Kb

Amin Witno

66-69

12

A characterization of canonically consistent total signed graphs
Download: PDF, 164 Kb

Deepa Sinha and Pravin Garg

70-77

13

Integer sequences from walks in graphs
Download: PDF, 168 Kb

Ernesto Estrada and José A. de la Peńa

78-84

 
Volume 19, 2013, Number 4

Order

Title

Author(s)

Pages

1

A note on a Diophantine equation
Download: PDF, 97 Kb

József Sándor

1-3

2

b-Parts and finite b-representation of real numbers
Download: PDF, 201 Kb

M. H. Hooshmand

4-15

3

(2, d)-Sigraphs
Download: PDF, 238 Kb

E. Sampathkumar and M. A. Sriraj

16-27

4

On the number of sums of three unit fractions
Download: PDF, 92 Kb

Simon Brown

28-32

5

Pulsated Fibonacci sequence. Part 2
Download: PDF, 105 Kb

Krassimir T. Atanassov

33-36

6

On generalized multiplicative perfect numbers
Download: PDF, 99 Kb

Bhabesh Das and Helen K. Saikia

37-42

7

Abstract factorials
Download: PDF, 301 Kb

Angelo B. Mingarelli

43-76

8

Exact formulae for the prime counting function
Download: PDF, 161 Kb

Mladen Vassilev–Missana

77-85

9

Restricted super line signed graph RLr(S)
Download: PDF, 178 Kb

P. Siva Kota Reddy and U. K. Misra

86-92

 
About NNTDM

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Journal Contents

     Volume 20, 2014
    Volume 19, 2013
    Volume 18, 2012
    Volume 17, 2011
    Volume 16, 2010
    Volume 15, 2009
    Volume 14, 2008
    Volume 13, 2007
    Volume 12, 2006
    Volume 11, 2005
    Volume 10, 2004
    Volume 9, 2003
    Volume 8, 2002
    Volume 7, 2001
    Volume 6, 2000
    Volume 5, 1999
    Volume 4, 1998
    Volume 3, 1997
    Volume 2, 1996
    Volume 1, 1995

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