A Bertrand Postulate for a Subclass of Primes
Mohan Reddy, G. Sudhaamsh¹; Rau, S. Srinivas¹; Uma, B
¹IFHE University, Hyderabad, Andhra Pradesh. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 109-111]

A New Sort of Separation Axioms
Thivagar, M. Lellis¹; Paul, Nirmala Rebecca^2
1Madurai Kamaraj University, Department of Mathematics, Madurai, Tamil Nadu. India; ²Lady Doak College, Department of Mathematics, Madurai, Tamil Nadu. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 67-76]

An Example of Self-Acceleration for Incompressible Flows
Lorenz, Jens¹; Ott, Randy^1
1University of New Mexico, Department of Mathematics and Statistics, Albuquerque, Nuevo México. Estados Unidos de América
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 149-159]

Averaging in optimal control problems for systems of difference equations
Volodymyrivna Komashynska, Iryna^1
1University of Jordan, Department of Mathematics, Ammán. Jordania
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 175-182]

Biharmonic B-Slant Helices According To Bishop Frame In The SL2(R). Talat Körpinar and Essin Turhan
Korpinar, Talat¹; Turhan, Essin^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 39-45]

Biharmonic Curves according to Parallel Transport Frame in E4
Korpinar, Talat¹; Turhan, Essin^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 213-217]

b-Smarandache tm2 Curves of Biharmonic New Type b-Slant Helices according to Bishop Frame in the Sol Space Sol3
Korpinar, Talat¹; Turhan, Essin^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 265-271]

Characterization Of Inextensible Flows Of Spacelike Curves With Sabban Frame In S12
Ergut, Mahmut¹; Turhan, Essin¹; Korpinar, Talat^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 47-53]

Characterizing of Dual Focal Curves in D3
Korpinar, Talat¹; Turhan, Essin¹; Bas, Selcuk^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 77-82]

Construction of Inextensible Flows of Dual Normal Surfaces in the Dual Space D3. Vedat Asil and Talat Körpinar
Asil, Vedat¹; Korpinar, Talat^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 31-37]

C-sets and decomposition of continuity in generalized topological spaces
Jamunarani, R¹; Jeyanthi, P¹; Velrajan, M^2
1Govindammal Aditanar College for Women, Department of Mathematics, Tiruchendur, Tamil Nadu. India; ²Aditanar College of Arts and Science, Department of Mathematics, Tiruchendur, Tamil Nadu. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 255-264]

Factorizations of the Negatively Subscripted Balancing and Lucas-Balancing Numbers
Kumar Ray, Prasanta^1
1International Institute of Information and Technology, Bhubaneswar, Orissa. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 161-173]

Heredity for triangular operators
Crawford Rhaly Jr., Henry
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 231-234]

σ-Ideals and Generalized Derivations in σ-Prime Rings
Khan, M. Rais¹; Arora, Depa¹; Khan, M. Ali^1
1Jamia Millia Islamia, Department of Mathematics, Nueva Delhi, Delhi. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 113-119]

Inextensible Flows of Spacelike Curves on Spacelike Surfaces according to Darboux Frame in M3 1
Bas, Selcuk¹; Korpinar, Talat^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 9-17]

Influence of weakly H-subgroups of minimal subgroups on the structure of finite groups
Al-Shomrani, M. M^1
1King Abdulaziz University, Department of Mathematics, Yeda. Arabia Saudita
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 139-147]

Integral Equations of Biharmonic Constant Π1-Slope Curves according to Type-2 Bishop Frame in the Sol Space
Korpinar, Talat¹; Turhan, Essin^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 205-212]

Isospectral Flat Connexions
Rau, S. Srinivas¹; Mohan Reddy, G. Sudhaamsh^1
1IFHE University, Hyderabad, Andhra Pradesh. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 279-281]

M2-Type Sharp Estimates and Weighted Boundedness for Commutators Related to Singular Integral Operators Satisfying a Variant of Hormander's Condition
Lu, Daqing¹; Liu, Lanzhe^1
1Changsha University of Science and Technology, Department of Mathematics, Changsha. China
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 129-137]

New approach of ideal topological generalized closed sets
Thivagar, M. Lellis¹; Santhini, C^2
1Madurai Kamaraj University, School of Mathematics, Madurai, Tamil Nadu. India; ²V.V.Vanniaperumal College For Women, Department of Mathematics, Virudhunagar, Tamil Nadu. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Num. 2 , Pag. 191-204]