Boletim da Sociedade Paranaense de Matemática. 3ş Série. Vol.39, 5, Maringá. 2021.

ISSN-0037-8712 (PRINT) - ISSN-2175-1188 (ONLINE)

 

Research Articles 

 

Novel Models for Obtaining the Closest Weak and Strong Efficient Projections in Data Envelopment Analysis.

J. Vakili, H. Amirmoshiri and M .K. Mirnia

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9

Additivity of Maps Preserving Triple Product on $\ast$-ring.

A. Taghavi, M. Razeghi, M. Nouri, V. Darvish and C. Li

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25

Dynamics and Stability of $\psi$-fractional Pantograph Equations with Boundary Conditions.

K. Shah, D. Vivek and K. Kanagarajan

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43

Synchronization of Different Dimensions Fractional-Order Chaotic Systems with Uncertain Parameters and Secure Communication.


V. Vafaei, H. Kheiri and A. Jodayree Akbarfam

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57

A New Proof of Classical Dixon's Summation Theorem for the Series ${}_{3}F_{2}(1)$.

S. Jun, I. Kim and A. Rathie

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73

On a New Class of Double Integrals Involving Gauss's ${}_{2}F_{1}$ Hypergeometric Function.

Sungtae Jun

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79

 

Existence Results Involving Fractional Liouville Derivative.

A. Ghanmi and M. Althobaiti

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93

On The New Type Of Solutions To Benney-Luke Equation.

Hami Gündogdu and Ömer Faruk Gözükizil

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103

On $\delta$- Lorentzian Trans Sasakian Manifold With A Semi-Symmetric Metric Connection.

M. D. Siddiqi

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113

On the Solution of an f(R) Theory of Gravity Motivated by Gravitational Waves in Spherically Symmetric Spacetime.

A. M. Mishra

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135

Existence of Some Classes of $N(k)$-quasi Einstein Manifolds.

S. K. Chaubey, K. K. Bhaishya and M. Danish Siddiqi

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145

Smarandache Curves of Bertrand Curves Pair According to Frenet Frame.

Şenyurt, A. Çalişkan and Ü. Çelik

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161

On Nonspreading-Type Mappings in Hadamard Spaces.

G. C. Ugwunnadi, C. Izuchukwu and O. T. Mewomo

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175

Infinitely Many Solutions for a Nonlocal Elliptic System of $(p_1,\ldots,p_n)$-Kirchhoff Type with Critical Exponent.

G. A. Afrouzi, G. Caristi, and A. Salari

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199

On the Derivative of a Polynomial.

E. Khojastehnezhad and M. Bidkham

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223