On Construction of D-Focal Curves in Euclidean 3-Space M3
Asil, Vedat¹; Bas, Selcuk¹; Korpinar, Talat^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 273-277]

One Parameter Family of b-m1 Developable Surfaces of Biharmonic New Type b-Slant Helices according to Bishop Frame in the Sol Space Sol3
Ergut, Mahmut¹; Korpinar, Talat¹; Turhan, Essin^1
1Firat University, Department of Mathematics, Elazig. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 121-128]

On Some New Modular Sequence Spaces
Bektas, Cigdem¹; Atici, Gulcan^2
1Firat University, Department of Mathematics, Elazig. Turquía; ²Mus Alparslan University, Department of Mathematics, Mus. Turquía
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 55-65]

On the Spectrum of 2-nd order Generalized Difference Operator Δ2over the Sequence space c0
Dutta, S¹; Baliarsingh, P^2
1Utkal University, Department of Mathematics, Vanivihar, Bhubaneswar. India; ²Trident Academy of Technology, Department of Mathematics, Infocity, Bhubaneswar. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 235-244]

Operators on Grill M-Space
Modak, Shyamapada^1
1University of Gour Banga, Department of Mathematics, Mokdumpur, Malda. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 101-107]

Parallel Surfaces to Normal Ruled Surfaces of General Helices 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 Núm. 2 , Pág. 245-253]

Review article on χ2 sequence spaces defined by modulus and fuzzy numbers
Subramanian, N¹; Balasubramanian, K^1
1Shanmugha Arts, Science, Technology and Research Academy, Department of Mathematics, Thanjavur, Tamil Nadu. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 83-99]

Topology of Grill Filter Space and Continuity
Modak, Shyamapada^1
1University of Gour Banga, Department of Mathematics, Malda. India
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 219-230]

Warfield p-Invariants in Abelian Group Rings of Characteristic p
Danchev, Peter¹
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 183-189]

Weak forms of g-α-open sets and decompositions of continuity via grills
Al-Omari, Ahmad¹; Noiri, Takashi
¹Al al-Bayt University, Department of Mathematics, Mafraq City. Jordania
[Boletim da Sociedade Paranaense de Matematica, Brasil, 2013 Vol. 31 Núm. 2 , Pág. 19-29]