Applicable Analysis and Discrete Mathematics Vol. 20, No 1 (April, 2026)

Online version (ISSN 2406-100X) posted on April 28, 2026.

Printed version (ISSN 1452-8630) appeared on April 28, 2026.

• Title:

  RESULTS ON COMPARISON AND SUB/SUPER-STABILIZABILITY OF SOME NEW MEANS

  Authors:

  Lenka Mihoković and Mustapha Raïssouli

  Classification:

  2020 Mathematical Subject Classification: 26E60; 41A60; 39B62

  Keywords:

  Keywords and phrases: Resultant mean-map, Comparison, Stable mean, Asymptotic expansion, Power means.

  Doi:

  DOI: https://doi.org/10.2298/AADM240618001M

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• Title:

  EXPANSIONS OF CERTAIN INVERSE FACTORIAL SERIES VIA SERIES AND SEQUENCE TRANSFORMATIONS

  Authors:

  Ayhan Dil and Büşra Budak

  Classification:

  2020 Mathematical Subject Classification: 33B15, 33E20, 11M41

  Keywords:

  Keywords and phrases: Harmonic numbers, Skew-harmonic numbers, Stirling numbers, Binomial transform, Euler sums

  Doi:

  DOI: https://doi.org/10.2298/AADM250816008D

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• Title:

  APPLICATION OF NEW FIXED POINT THEOREMS ON PROXIMITY SPACES TO FRACTIONAL BOUNDARY VALUE PROBLEM

  Authors:

  Muhammad Qasim and Ishak Altun

  Classification:

  2020 Mathematical Subject Classification: 54H25, 47H10, 34B18

  Keywords:

  Keywords and phrases: Proximity space, fixed point, Geraghty contraction, fractional derivative

  Doi:

  DOI: https://doi.org/10.2298/AADM241103005Q

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• Title:

  SEVERAL NEW HUYGENS TYPE INEQUALITIES

  Authors:

  Wen-Hui Li and Feng Qi

  Classification:

  2020 Mathematical Subject Classification: 26D05, 33B10

  Keywords:

  Keywords and phrases: Huygens Type Inequality, Sinc Function, Tanc Function, Maclaurin Power Series Expansion, Stratification Method

  Doi:

  DOI: https://doi.org/10.2298/AADM241208017L

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• Title:

  NEW SHAFER-FINK TYPE INEQUALITIES FOR INVERSE TRIGONOMETRIC, INVERSE HYPERBOLIC AND ARC LEMNISCATE FUNCTIONS

  Authors:

  Shun-Wei Xu, Jun-Ling Sun, and Chao-Ping Chen

  Classification:

  2020 Mathematical Subject Classification: 26D05

  Keywords:

  Keywords and phrases: Shafer-Fink type inequalities, arc sine function, arc tangent function, arc hyperbolic tangent function, arc lemniscate functions

  Doi:

  DOI: https://doi.org/10.2298/AADM250324010X

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• Title:

  NEW TYPE DEGENERATE SIMSEK NUMBERS AND RELATED ASPECTS

  Authors:

  Lahcen Oussi

  Classification:

  2020 Mathematical Subject Classification: 05A15, 11B83, 15A99

  Keywords:

  Keywords and phrases: Stirling numbers, Degenerate Stirling numbers, Simsek numbers, Generat- ing function, Apostol-Euler numbers

  Doi:

  DOI: https://doi.org/10.2298/AADM250405002O

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• Title:

  AFFINE-PERIODIC SOLUTIONS OF DISCRETE DYNAMICAL SYSTEMS: MASSERA’S CRITERION, AFFINE-PERIODIC FLOQUET DECOMPOSITION AND EXISTENCE RESULTS

  Authors:

  Marko Kostić, Halis Can Koyuncuoğlu and Youssef N. Raffoul

  Classification:

  2020 Mathematical Subject Classification: 39A06, 39A23, 39B05

  Keywords:

  Keywords and phrases: Affine-periodic Massera, Floquet decomposition, summable dischotomy, Green’s function

  Doi:

  DOI: https://doi.org/10.2298/AADM250604016K

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• Title:

  MONOTONICITY RULES FOR THE RATIO OF POWER SERIES WITH APPLICATIONS

  Authors:

  Zhong-Xuan Mao and Jing-Feng Tian

  Classification:

  2020 Mathematical Subject Classification: 26A48, 32A05, 33C15

  Keywords:

  Keywords and phrases: Monotonicity rules, power series, confluent hypergeometric function of the first kind

  Doi:

  DOI: https://doi.org/10.2298/AADM250601011M

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• Title:

  ENUMERATION OF LATTICE PATHS USING VIETA POLYNOMIALS

  Authors:

  Marilena Jianu and Leonard Dăuş

  Classification:

  2020 Mathematical Subject Classification: 05C50, 05A15, 11B39

  Keywords:

  Keywords and phrases: Dyck-type lattice paths, Vieta polynomials, Cayley-Hamilton Theorem, linear recurrence

  Doi:

  DOI: https://doi.org/10.2298/AADM250807006J

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• Title:

  EXISTENCE AND UNIQUENESS RESULTS FOR NONLINEAR SYSTEM OF MIXED Ψ-RIEMANN–LIOUVILLE AND Φ-CAPUTO FRACTIONAL DERIVATIVES WITH MIXED BOUNDARY CONDITIONS

  Authors:

  Hasan Rasouli and Ravi P. Agarwal

  Classification:

  2020 Mathematical Subject Classification: 34A08

  Keywords:

  Keywords and phrases: Fractional differential equations, Ψ-Riemann–Liouville fractional derivative, Φ-Caputo fractional derivative, Fixed point theory, uniqueness results

  Doi:

  DOI: https://doi.org/10.2298/AADM250728019R

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• Title:

  ON THE GROWTH AND DERIVATIVES OF A POLYNOMIAL

  Authors:

  Abdullah Mir and Abid Hussain Wani

  Classification:

  2020 Mathematical Subject Classification: 30A10, 30C10, 30C15

  Keywords:

  Keywords and phrases: Growth estimates, Maximum Modulus Principle, Zeros

  Doi:

  DOI: https://doi.org/10.2298/AADM250828003M

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• Title:

  ADVANCES IN MITRINOVIĆ–ADAMOVIĆ-TYPE INEQUALITIES

  Authors:

  Gabriel Bercu, Vlad Drinceanu, Cristinel Mortici and Miloš Mićović

  Classification:

  2020 Mathematical Subject Classification: 41A21, 26D05, 33B10

  Keywords:

  Keywords and phrases: Mitrinović-Adamović inequality, trigonometric functions

  Doi:

  DOI: https://doi.org/10.2298/AADM251204015B

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• Title:

  NEW RESULTS ON THE ADJUGATE MATRIX APPLIED TO GRAPHS WITH A ROTATED EDGE

  Authors:

  Miriam Abdón and Alexander Farrugia

  Classification:

  2020 Mathematical Subject Classification: 05C50, 05C83

  Keywords:

  Keywords and phrases: characteristic polynomial, graph spectrum, edge rotation, Jacobi’s theorem

  Doi:

  DOI: https://doi.org/10.2298/AADM250715014A

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• Title:

  ON THE MAXIMUM ABC SPECTRAL RADIUS OF CONNECTED GRAPHS WITH GIVEN MAXIMUM DEGREE

  Authors:

  Wenshui Lin, Ningyu Chen and Jia-Bao Liu

  Classification:

  2020 Mathematical Subject Classification: 05C50, 15A18

  Keywords:

  Keywords and phrases: ABC Matrix, Spectral Radius, Upper Bounds, Maximum Degree

  Doi:

  DOI: https://doi.org/10.2298/AADM231107012L

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