Umar Ishtiaq

513 total citations · 2 hit papers
66 papers, 276 citations indexed

About

Umar Ishtiaq is a scholar working on Geometry and Topology, Management Science and Operations Research and Computational Theory and Mathematics. According to data from OpenAlex, Umar Ishtiaq has authored 66 papers receiving a total of 276 indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Geometry and Topology, 17 papers in Management Science and Operations Research and 15 papers in Computational Theory and Mathematics. Recurrent topics in Umar Ishtiaq's work include Fixed Point Theorems Analysis (42 papers), Fuzzy and Soft Set Theory (13 papers) and Optimization and Variational Analysis (8 papers). Umar Ishtiaq is often cited by papers focused on Fixed Point Theorems Analysis (42 papers), Fuzzy and Soft Set Theory (13 papers) and Optimization and Variational Analysis (8 papers). Umar Ishtiaq collaborates with scholars based in Pakistan, Saudi Arabia and Romania. Umar Ishtiaq's co-authors include Ioannis K. Argyros, Muhammad Asif, Fahim Ud Din, Naeem Saleem, Mohammad Akram, Aftab Hussain, Salvatore Sessa, Muhammad Arshad, Hassen Aydi and Muhammad Saeed and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Umar Ishtiaq

48 papers receiving 258 citations

Hit Papers

Hamacher Aggregation Operators for Pythagorean Fuzzy Set ... 2024 2026 2025 2024 2024 10 20 30 40 50
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Hamacher Aggregation Operators for Pythagorean Fuzzy Set and its Application in Multi-Attribute Decision-Making Problem
    2024 53 citations Muhammad Asif, Umar Ishtiaq et al. profile →
  2. Fractals of Interpolative Kannan Mappings
    2024 34 citations Umar Ishtiaq, Mohammad Akram et al. Fractal and Fractional profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Umar Ishtiaq Pakistan 9 147 85 34 28 25 66 276
Truong Q. Bao United States 11 147 1.0× 40 0.5× 504 14.8× 57 2.0× 5 0.2× 32 543
Salahuddin Salahuddin Saudi Arabia 9 49 0.3× 30 0.4× 196 5.8× 26 0.9× 19 0.8× 106 273
Kaizhong Guan China 11 94 0.6× 16 0.2× 18 0.5× 173 6.2× 26 1.0× 34 304
Ahmet Şahiner Türkiye 10 77 0.5× 34 0.4× 59 1.7× 101 3.6× 37 1.5× 41 360
K. F. Ng Hong Kong 16 134 0.9× 83 1.0× 571 16.8× 90 3.2× 5 0.2× 36 625
A. Göpfert Germany 5 127 0.9× 57 0.7× 451 13.3× 76 2.7× 4 0.2× 9 513
Baasansuren Jadamba United States 10 11 0.1× 35 0.4× 145 4.3× 18 0.6× 5 0.2× 33 285
Xian-Zhi Yuan Australia 13 259 1.8× 96 1.1× 333 9.8× 86 3.1× 5 0.2× 49 487
Wen-ling Huang Germany 11 42 0.3× 10 0.1× 94 2.8× 6 0.2× 20 0.8× 34 433
Nazih Abderrazzak Gadhi Morocco 11 106 0.7× 38 0.4× 342 10.1× 15 0.5× 2 0.1× 63 365

Countries citing papers authored by Umar Ishtiaq

Since Specialization
Citations

This map shows the geographic impact of Umar Ishtiaq's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Umar Ishtiaq with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Umar Ishtiaq more than expected).

Fields of papers citing papers by Umar Ishtiaq

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Umar Ishtiaq. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Umar Ishtiaq. The network helps show where Umar Ishtiaq may publish in the future.

Co-authorship network of co-authors of Umar Ishtiaq

This figure shows the co-authorship network connecting the top 25 collaborators of Umar Ishtiaq. A scholar is included among the top collaborators of Umar Ishtiaq based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Umar Ishtiaq. Umar Ishtiaq is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Rehman, Mati Ur, Ioan‐Lucian Popa, Emad A. A. Ismail, et al.. (2025). Radiation effects on heat and mass transfer in porous media using Casson nanofluids: Fractional model with nanoparticles in vegetable oil. Journal of Radiation Research and Applied Sciences. 18(2). 101505–101505.
2.
Kamran, Tayyab, et al.. (2025). Some Categories of Compactness and Connectedness in Generalized Topological Spaces. Axioms. 14(2). 141–141.
3.
Ishtiaq, Umar, et al.. (2025). Existence and Uniqueness Results for Fuzzy Bipolar Metric Spaces. Symmetry. 17(2). 180–180.
4.
Ishtiaq, Umar, et al.. (2025). A robust uniform practical stability approach for Caputo fractional hybrid systems. AIMS Mathematics. 10(3). 7001–7021.
5.
Ishtiaq, Umar, et al.. (2025). Certain Fixed-Point Results for (e,ψ,Φ)-Enriched Weak Contractions via Theoretic Order with Applications. Axioms. 14(2). 135–135. 2 indexed citations
6.
Khan, Suleman, M. W. Akram, Umar Ishtiaq, Mübariz Garayev, & Ioan‐Lucian Popa. (2025). Edge-Irregular Reflexive Strength of Non-Planar Graphs. Symmetry. 17(3). 386–386.
7.
Ali, Bilal, et al.. (2025). Numerical Modelling and Deep learning-based analysis of unsteady micropolar nanofluid flow with heat radiation over a riga plate. Journal of Radiation Research and Applied Sciences. 18(2). 101512–101512. 2 indexed citations
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Akram, Mohammad, et al.. (2024). Some Generalized Neutrosophic Metric Spaces and Fixed Point Results with Applications. Symmetry. 16(8). 965–965. 1 indexed citations
12.
Ishtiaq, Umar, et al.. (2024). Certain Novel Fixed-Point Theorems Applied to Fractional Differential Equations. Fractal and Fractional. 8(12). 701–701. 1 indexed citations
13.
Asif, Muhammad, et al.. (2024). Aczel-Alsina Aggregation Operators for Pythagorean Fuzzy Linear Diophantine Set and Application to Multiple-Attribute Decision-Making Problem Related to Medical Diagnosis. International Journal of Fuzzy Systems. 27(5). 1406–1420. 2 indexed citations
14.
Ishtiaq, Umar, et al.. (2023). Certain Interpolative Proximal Contractions, Best Proximity Point Theorems in Bipolar Metric Spaces with Applications. Fractal and Fractional. 7(10). 766–766. 2 indexed citations
15.
Ishtiaq, Umar, et al.. (2023). On Intuitionistic Fuzzy Nb Metric Space and Related Fixed Point Results with Application to Nonlinear Fractional Differential Equations. Fractal and Fractional. 7(7). 529–529. 2 indexed citations
16.
Hussain, Aftab, et al.. (2023). On Neutrosophic 2-Metric Spaces with Application. Journal of Function Spaces. 2023. 1–9. 3 indexed citations
17.
Ishtiaq, Umar, et al.. (2023). Fixed Point Results in Controlled Fuzzy Metric Spaces with an Application to the Transformation of Solar Energy to Electric Power. Mathematics. 11(15). 3435–3435. 2 indexed citations
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Din, Fahim Ud, et al.. (2022). A New Extension to the Intuitionistic Fuzzy Metric-like Spaces. Symmetry. 14(7). 1400–1400. 8 indexed citations
20.
Saeed, Muhammad, et al.. (2022). A Theoretical Development of Cubic Pythagorean Fuzzy Soft Set with Its Application in Multi-Attribute Decision Making. Symmetry. 14(12). 2639–2639. 10 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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