Integral Equations and Operator Theory focuses on publishing original research papers in operator theory and in areas where operator theory plays a key role, such as integral equations and differential equations. Welcomes new significant developments in operator theory. Emphasizes the linear aspects of the theory. Includes fruitful interactions of operator theory with applications and other areas of mathematics. Publishes high quality research papers as well as challenging open problems. Features a very high percentage of authors intending to publish in the journal again.
⚡ Speed vs Prestige
How does this journal balance review speed with impact level?
Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.
Publication & Citation Trend
Articles published
Times cited
2019
2020
2021
2022
2023
2024
2025
2026
Source: OpenAlex · Note: citations accumulate over time so older years appear higher
SJR Quartile by Discipline
Scimago ranks this journal separately in each subject category — its quartile can differ by discipline.
Algebra and Number TheoryQ1
AnalysisQ2
Subject Classification
Web of Science Categories
Mathematics
Scopus Categories
AnalysisAlgebra and Number Theory
Research Topics (OpenAlex)
Holomorphic and Operator TheorySpectral Theory in Mathematical PhysicsAdvanced Topics in AlgebraAlgebraic and Geometric AnalysisMatrix Theory and AlgorithmsAdvanced Operator Algebra ResearchAdvanced Banach Space TheoryAdvanced Harmonic Analysis ResearchNumerical methods in inverse problemsMathematical Analysis and Transform Methods