Enes – Series A

Vol. 17, No. 1 (2025)

Improvement of some bounds for the Randić Estrada index of graphs

Authors: Akbar Jahanbani, Hajar Shooshtari, Izudin Redžepović

Keywords: Randić eigenvalues of a graph, Estrada index, Randić Estrada index, bounds, graph invariants

Hamming energy of sunlet and n-barbell graphs

Authors: Bojana Borovićanin, Nenad Stojanović, Nemanja Vučićević

Keywords: Hamming energy, Sunlet graph, n-Barbell graph

Modeling the dynamics of lunar dust, taking into account the actual optical properties of minerals

Authors: Andrey B. Yakovlev, Dmitriy A. Beloborodov

Keywords: lunar dust, electrostatic levitation, radiation pressure, optical properties of minerals, modeling

Application of digital models in the presentation of relief, lake bathymetry, lake eyes and climatic elements in the area of the Skadar lake region (Montenegro)

Authors: Dejan Radović, Edin Dolićanin

Keywords: GIS, digital models, Lake Skadar

Wireframe Modelling of Web Based Open Data Applications

Authors: Jovan S. Milutinović, Petar O. Milić, Slaviša S. Vučetić

Keywords: software wireframe modelling, wireframe modelling tools, web based open data applications

Solvability of a Mixed Problem for an Integro-Differential Equation with the Hilfer Type Fractional Analogue of the Barenblatt–Zheltov–Kochina Operator

Authors: Tursun K. Yuldashev, Bakhtiyor J. Kadirkulov, Aygul A. Matchanova

Keywords: integro-differential equation, Hilfer fractional analog of the Barenblatt–Zheltov–Kochina operator, degenerate kernel, regular solvability

Novel Sombor-Index-Like Topological Indices with Geometry and Calculus

Authors: Mert Sinan Oz

Keywords: the Sombor index, the Sombor-index-like indices, vertex-degree-based indices

On Sensitivity of Hamming Energy of a Graph

Authors: Izudin Redžepović, Nemanja Vučićević, Nenad Stojanović

Keywords: Hamming matrix, eigenvalues, graph spectrum, graph energy, degeneracy of graph quantity

On Some Vertex Degree Based Topological Indices of Graphs and Corresponding Polynomials

Authors: Mert Sinan Oz, Emir Zogić

Keywords: Topological indices, the general Randić index, coefficients of the characteristic polynomial

Family of Occasionally Weakly Compatible Mappings with an Application in Dynamic Programming

Authors: Penumarthy P. Murthy, Kavita, Sanjey Kumar, Ersin Gilić

Keywords: (psi,fi)-weak contraction, Occasionally weakly compatible mappings, property (E.A), Functional equations, Dynamic programming

In Memoriam: Ćemal Dolićanin

Life and Work of Ćemal Dolićanin

Authors: Teodor M. Atanacković

A New Optimization Approach for the Tallest Column Design

Authors: Dragan T. Spasić, Teodor M. Atanacković

Keywords: tallest column, generalized elastica with shear and axial strain, optimal control problem with a free end point

On the Compact Integral Hypersurfaces of the Multidimensional Homogeneous Darboux System

Authors: Vladimir V. Amel’kin, Valentin Yu. Tyshchenko

Keywords: system of ordinary differential equations, completely solvable system of exact differential equations, hypersurface

On the Deformation of a Round Three-layer Plate under the Action of a Surface Charge

Authors: Alexey A. Tikhonov, Natalia V. Naumova, Andrey B. Yakovlev, Denis N. Ivanov, Nikita P. Dorofeev

Keywords: three-layer plate, deformation, solar sail

Estimating the Gourava Sombor Index

Authors: Ivan Gutman, Veerabhadrappa R. Kulli

Keywords: Gourava index, Sombor index, Gourava Sombor index, Zagreb index

Remarks on the Modified Second Zagreb Index on a Line Graph

Authors: Igor Milovanović, Emina Milovanović, Marjan Matejić, Stefan Stankov

Keywords: graphs, topological indices, degree-based invariants

Some Bounded Linear and Compact Operators into the Generalised Hahn Space

Authors: Eberhard Malkowsky, Vesna I. Veličković, Enes Kačapor

Keywords: bounded linear and compact operators, Hausdorff measure of noncompactness, Wulff’s crystals

Towards Citizen-Centered Smart Services Research Insights from a Project

Authors: Ejub Kajan, Emir Ugljanin, Ulfeta Marovac, Aldina Avdić, Adela Ljajić

Keywords: open government, smart cities, social machines

On Some Selection Principles in the Space of G-permutation Degree

Authors: Ljubiša D. R. Kočinac, Farkhod G. Mukhamadiev, Anvar K. Sadullaev

Keywords: space of G-permutation degree, (star) selection principles, w-Rothberger space, Alster space, set star selection principles

SCIENTIFIC PUBLICATIONS OF THE STATE UNIVERSITY OF NOVI PAZAR