Kragujevac Journal of Mathematics
University of Kragujevac - Faculty of Science

EDITORIAL BOARD

When is a Bi-Jordan Homomorphism Bi-homomorphism?

Author: A. ZIVARI-KAZEMPOUR
Keyword: n-bi-homomorphism, n-bi-Jordan homomorphism, weakly commutative.
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485–493

Fault-tolerant Metric Dimension Problem: A New Integer Linear Programming Formulation and Exact Formula for Grid Graphs

Author: A. SIMIć, M. BOGDANOVIĆ, Z. MAKSIMOVIĆ AND J. MILOšEVIĆ
Keyword: Integer linear programming, fault-tolerant metric dimension.
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495–503

New Fixed Point Results in Orthogonal Metric Spaces With an Application

Author: T. SENAPATI, L. K. DEY, B. DAMJANOVIĆ AND A. CH
Keyword: Orthogonal metric space, w-distance, fixed point, nonlinear fractional differential equation.
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505–516

Zero-Annihilator Graphs of Commutative Rings

Author: H. MOSTAFANASAB
Keyword: Graphs, commutative rings, zero-annihilator graphs.
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517–525

Horadam Sequence Through Recurrent Determinants of Tridiagonal Matrices

Author: T. GOY
Keyword: Horadam sequence, triangular matrix, tridiagonal matrix, paradeterminant, Fibonacci sequence.
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527–532

Note on the Unicyclic Graphs with the First Three Largest Wiener Indices

Author: E. GLOGIĆ AND LJ. PAVLOVIĆ
Keyword: Unicyclic graphs, Wiener index, distance, extremal graphs
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533–537

A Pointfree Analogues of Lattice-valued Bitopological Spaces

Author: M. AZAB ABD-ALLAH, K. EL-SAADY, A. GHAREEB AND A. TEMRAZ
Keyword: Semi-quantales, spatiality, sobriety, L-quasi-topology.
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539-553

Apostol Type (p,q)-Frobenius-Euler Polynomials and Numbers

Author: U. DURAN AND M. ACIKGOZ
Keyword: (p,q)-calculus, Bernoulli polynomials, Euler polynomials, Genocchi polynomials, Frobenius-Euler polynomials, generating function, Cauchy product.
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555–567

Some Inequalities for the Numerical Radius and Rhombic Numerical Radius

Author: A. B. BAJMAEH AND M. E. OMIDVAR
Keyword: Rhombic numerical radius, numerical radius, usual operator norm.
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569–577

Hyers-Ulam-Rassias Stability for the Linear Ordinary Differential Equation of Third Order

Author: R. MURALI AND A. PONMANA SELVAN
Keyword: Hyers-Ulam-Rassias stability, linear differential equation, initial condition, homogeneous and non-homogeneous.
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579–590

Lower Extremities for Generalized Normalized $delta$-Casorati Curvatures of Bi-slant Submanifolds in Generalized Complex Space Forms

Author: M. AQUIB, M. H. SHAHID AND M. JAMALI
Keyword: Casorati curvature, generalized complex space form, scalar curvature, warped product.
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591–605

Twist Product Derived from $Gamma$-semihypergroup

Author: S. OSTADHADI-DEHKORDI
Keyword: Γ-semihypergroup, left(right)(∆,G)-set, twist product, flat Γ-semihyper-group, absolutely flat Γ-semihypergroup.
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607–617

Pseudo Conharmonically Symmetric Spacetimes

Author: F. ÖZEN ZENGIN AND A. YAVUZ TAşCı
Keyword: Conharmonic transformation, conharmonic curvature tensor, pseudo conharmonically symmetric manifold, scalar curvature, perfect fluid spacetime.
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619–630

Ideals of IS-algebras Based on N-structures

Author: H. BORDBAR, M. MEHDI ZAHEDI AND Y. BAE JUN
Keyword: Left (resp., right) NI-ideal, translation, closed support, retrenched left (resp., right) NI-ideal.
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631–641