20 Mar 2025Open access
Determination of Naphthalene Concentration in Gombe Urban SoilsPublisher siteBIMA JOURNAL OF SCIENCE AND TECHNOLOGY GOMBE, Chemical Analysis and Environmental Impact
Active, last published 2026
In semigroups and automata theory
Abdullahi
Umar
Scholar“Research focused on semigroups and automata theory and adjacent fields.”
Gombe State University
Nigeria
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01 · About the work
What I study
bdullahi Umar is a researcher working on semigroups and automata theory. A fuller summary will appear once they update their profile.
02 · Reach
Publication output and reach
Abdullahi's work has been cited 495 times across 2 active years. Bars show publications per year; the line shows cumulative citation totals across publications first appearing in each year.
03 · Research focus
Topics
semigroups and automata theory×52Advanced Algebra and Logic×26Geometric and Algebraic Topology×15Advanced Combinatorial Mathematics×14Fuzzy and Soft Set Theory×8
04 · Where I am
Affiliations
Affiliation on published researchGombe State University, NigeriaDrawn from the institution listed on this researcher’s published work.
05 · Selected work
Recent publications
2 works30 Apr 2024Open access1cites
Combinatorial results for order-preserving partial injective contraction mappingsPublisher siteContributions to Discrete Mathematics, Fixed Point Theorems Analysis
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