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.
Fuzzy topological spaces and fuzzy compactness
1976632 citationsR. LöwenJournal of Mathematical Analysis and Applicationsprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of R. Löwen'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 R. Löwen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Löwen more than expected).
This network shows the impact of papers produced by R. Löwen. 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 R. Löwen. The network helps show where R. Löwen may publish in the future.
Co-authorship network of co-authors of R. Löwen
This figure shows the co-authorship network connecting the top 25 collaborators of R. Löwen.
A scholar is included among the top collaborators of R. Löwen 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 R. Löwen. R. Löwen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Naudts, Bart, et al.. (2005). Foundations of Generic Optimization: Volume 1: A Combinatorial Approach to Epistasis (Mathematical Modelling: Theory and Applications). Springer eBooks.4 indexed citations
Verwulgen, Stijn & R. Löwen. (2004). Approach Vector Spaces. Houston journal of mathematics. 30(4). 1127–1142.9 indexed citations
11.
Löwen, R., et al.. (2001). The cartesian closed hull of the category of approach spaces. French digital mathematics library (Numdam). 42(4). 242–260.
12.
Löwen, R., et al.. (1997). Exponential objects in the construct $\mathit{PRAP}$. French digital mathematics library (Numdam). 38(4). 259–276.2 indexed citations
13.
Löwen, R., et al.. (1997). On the quantification of uniform properties. Commentationes Mathematicae Universitatis Carolinae. 38(4). 749–759.2 indexed citations
Löwen, R., et al.. (1989). Topological quasitopos hulls of categories containing topological and metric objects. French digital mathematics library (Numdam). 30(3). 213–228.23 indexed citations
Löwen, R.. (1984). On the fundamentals of fuzzy sets.. Hispana. 8(2). 157–169.2 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.