TARU PUBLICATIONS
Journal of Interdisciplinary Mathematics cover
Open Access ·Peer-reviewed·ISSN (Online): 2169-012X·ISSN (Print): 0972-0502

Monthly Journal: Publishes the methodological and theoretical role of mathematics and mathematical applications underpinning scientific research.

Issues up to 2022 co-published with and available at:Taylor & Francis Online
submissions@tarupublications.com
Volume 29·Issue 1·January 2026·19 Articles

Volume 29, Issue 1

Articles

Open Access Research Article·pp. 1–9·Vol. 29, Issue 1Jan 2026

On generalization of biharmonic curves in a Walker 3-manifold

Adama Thiandoum, Ameth Ndiaye, Rénovat Nkunzimana

Published Online: 27 Dec 2025DOI: 10.47974/JIM-2021

In this paper: This paper examines f-biharmonic curves within a three-dimensional Walker manifold, focusing on their geometric properties. It derives explicit parametric equations for these curves and establishes th...

AbstractReferencesFull Text PDF (372 KB)Views: 441Downloads: 140Citations: 0
Open Access Research Article·pp. 11–17·Vol. 29, Issue 1Jan 2026

Ulam-Hyers stability of Volterra integral equation in a bv (s)-metric space

Souad Ayadi, Abdelkader Benali

Published Online: 10 Dec 2025DOI: 10.47974/JIM-2099

In this paper: This work investigates investigate the Ulam-Hyers (UH) stability of the Volterra integral equation (VIEs) within a bv (s)-metric space. We derive the desired result by employing a fixed-point approach...

AbstractReferencesFull Text PDF (488 KB)Views: 281Downloads: 130Citations: 0
Open Access Research Article·pp. 19–35·Vol. 29, Issue 1Jan 2026

Solving the fuzzy 1-center problem with an innovative ranking method for fuzzy numbers

Nemat Alalh Taghi-Nezhad, F. Taleshian

Published Online: 24 Nov 2025DOI: 10.47974/JIM-2129

In this paper: For modeling real-world problems in mathematical form, we encounter uncertain and ambiguous quantities. In such situations, the efficient fuzzy set (FS) theory is employed to model these uncertain and...

AbstractReferencesFull Text PDF (514 KB)Views: 252Downloads: 122Citations: 0
Open Access Research Article·pp. 57–70·Vol. 29, Issue 1Jan 2026

Cοnvergence results for solution of some families of multiple set split feasibility problems in stοchastic domain

Chijioke Joel Nweke, Ebοnyi State, George Chinanu Mbaeyi, Uchenna Michael

Published Online: 19 Dec 2025DOI: 10.47974/JIM-2157

In this paper: In this paper, the stochastic equivalence of some families of split feasibility problems has been studied. The work adopted iterative random-type approach using a firmly non-expansive mapping in Hilbe...

AbstractReferencesFull Text PDF (241 KB)Views: 197Downloads: 106Citations: 0
Open Access Research Article·pp. 71–84·Vol. 29, Issue 1Jan 2026

Weakly (K, L)-continuous functions in ideal bitopological spaces

Carlos Carpintero, Neelamegarajan Rajesh, Ennis Rosas, José Sanabria

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2179

In this paper: Using the notion of ideal bitopological space we introduce the (k, l)-weakly (K, L)-continuous functions and obtain several properties and looking for its relationships with another type of continuity...

AbstractReferencesFull Text PDF (370 KB)Views: 201Downloads: 116Citations: 0
Open Access Research Article·pp. 85–94·Vol. 29, Issue 1Jan 2026

Second kind Chebyshev polynomials for solving logarithmic Volterra-Fredholm integral equations

Mohamed Raid Nadir, Adel Jawahdou

Published Online: 05 Dec 2025DOI: 10.47974/JIM-2189

In this paper: It is known that the logarithmic Volterra integral equations are so hard to find its exact analytic solution, so we are obliged to find a new numerical method strong and reliable.. In this work, we de...

AbstractReferencesFull Text PDF (240 KB)Views: 312Downloads: 156Citations: 0
Open Access Research Article·pp. 95–104·Vol. 29, Issue 1Jan 2026

Rheological study of hot Bingham fluid inside an oval canal with Laminar peristaltic flow

Hana I. Lafta, Zainab A. Jaafar, Rana G. Ibraheem, Shuker Khalil

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2243

In this paper: This research article is reported the rheology of peristaltic flow of hot Bingham fluid inside an elliptical channel with sinusoidal moving walls. Convert the dimensional mathematical problem to a dim...

AbstractReferencesFull Text PDF (1.3 MB)Views: 293Downloads: 143Citations: 0
Open Access Research Article·pp. 105–112·Vol. 29, Issue 1Jan 2026

Numerical solution of random ordinary differential equations by using modified decomposition method

Khansaa Majeed Jarad, Ali Adnan Abdulsahib

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2245

In this paper: In the following work, we employ the modified decomposition method to obtain approximate solutions to random ordinary linear and nonlinear differential equations. We will introduce a fast technique fo...

AbstractReferencesFull Text PDF (642 KB)Views: 274Downloads: 112Citations: 0
Open Access Research Article·pp. 119–127·Vol. 29, Issue 1Jan 2026

On new type of ∆-open sets

Jamil Mahmoud Jamil, Ghazwan Mohammed Al-Hashimi, Intisar Elaiwi Ubaid

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2248

In this paper: We initiated a generalization of ∆-open sets, namely pre ∆-open set. Indeed, we studied the following notions such as pre ∆-interior, and pre ∆-closure and discussed their properties. Furthermore, we...

AbstractReferencesFull Text PDF (499 KB)Views: 202Downloads: 123Citations: 0
Open Access Research Article·pp. 137–144·Vol. 29, Issue 1Jan 2026

Convergence regarding EM schemes over neutral type SFDEs at space Cu with undetermined delay

Hussein K. Asker, Hassan K. Ismail, Mohammed T. Kahnger, Layla Hindi

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2251

In this paper: This work investigates the convergence of the EM approximation for neutral-type stochastic FDEs with infinite delay in the space Cu. To ensure numerical accuracy and stability for systems with memory...

AbstractReferencesFull Text PDF (399 KB)Views: 263Downloads: 129Citations: 0
Open Access Research Article·pp. 145–161·Vol. 29, Issue 1Jan 2026

Optimal mixed control problem dominating by triple system of parabolic equations

Jamil Amir Ali Al-Hawasy, Wafaa Abd Ibrahim, Lamyaa Hussein Ali, Marwa Ahmed Jawad

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2252

In this paper: This paper is devoted to study one of the important subject in the branch of applied mathematics, namely the optimal mixed control vector problem (OMCVP) dominating by triple system of parabolic PDEs...

AbstractReferencesFull Text PDF (442 KB)Views: 228Downloads: 124Citations: 0
Open Access Research Article·pp. 163–168·Vol. 29, Issue 1Jan 2026

Best multiplier co-approximation of unbounded functions in space Lp,λn (X)

Raad Falih Hasan, Abeer Mahdi Salih, Ali Hussein Zaboon

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2268

In this paper: The space Lp,λn (X) which is the space of all unbounded functions on the interval X = (0, 1] is defined. A special norm has been defined on the space  Lp,λn (X). Furthermore, the concept of the best m...

AbstractReferencesFull Text PDF (290 KB)Views: 157Downloads: 113Citations: 0
Open Access Research Article·pp. 169–180·Vol. 29, Issue 1Jan 2026

Analysis of new RET single-step method for solving stiff and singular types of ordinary differential equations

V. J. Shaalini, S. E. Fadugba

Published Online: 07 Nov 2025DOI: 10.47974/JIM-2336

In this paper: This study introduces a novel single-step approach that employs an interpolation technique combining a rational function based on a polynomial with a trigonometric interpolation component (RET) for ad...

AbstractReferencesFull Text PDF (411 KB)Views: 196Downloads: 131Citations: 0
Open Access Research Article·pp. 193–207·Vol. 29, Issue 1Jan 2026

A study on Pythagorean fuzzy digital feeble centred structure compactification

N. Preethi, G. K. Revathi

Published Online: 13 Jan 2026DOI: 10.47974/JIM-2414

In this paper: In a topological space, compactification serves as a significant extension. To effectively describe compactness and convergence within topological spaces, nets and filters are utilized. This article p...

AbstractReferencesFull Text PDF (366 KB)Views: 246Downloads: 131Citations: 0
Open Access Research Article·pp. 209–224·Vol. 29, Issue 1Jan 2026

Construction of tubular surface by infinitesimal bending of a curve

Suyash Parkash Chauhan, Pradeep Kumar Pandey, Sudhakar Kumar Chaubey

Published Online: 14 Jan 2026DOI: 10.47974/JIM-2441

In this paper: This paper investigates the tubular surface generated by the first-order infinitesimal bending of a regular curve in Euclidean space R3. We also study the focal surfaces derived from the tubular surfa...

AbstractReferencesFull Text PDF (696 KB)Views: 367Downloads: 131Citations: 0