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.
Graph theory and molecular orbitals. Total φ-electron energy of alternant hydrocarbons
This map shows the geographic impact of İvan Gutman'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 İvan Gutman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites İvan Gutman more than expected).
This network shows the impact of papers produced by İvan Gutman. 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 İvan Gutman. The network helps show where İvan Gutman may publish in the future.
Co-authorship network of co-authors of İvan Gutman
This figure shows the co-authorship network connecting the top 25 collaborators of İvan Gutman.
A scholar is included among the top collaborators of İvan Gutman 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 İvan Gutman. İvan Gutman 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.
Gutman, İvan, et al.. (2025). Sombor Energy of Hexacyclic Systems. match Communications in Mathematical and in Computer Chemistry. 94(2). 505–523.
Gutman, İvan, Izudin Redžepović, & Juan Rada. (2021). Relating Energy and Sombor Energy. SHILAP Revista de lepidopterología. 4. 41–44.14 indexed citations
Ramane, Harishchandra S., et al.. (2016). Skew equienergetic digraphs. SHILAP Revista de lepidopterología.4 indexed citations
14.
Wang, Zhao, et al.. (2016). Steiner Wiener index of graph products. SHILAP Revista de lepidopterología.12 indexed citations
15.
Gutman, İvan, et al.. (2012). Degree resistance distance of unicyclic graphs. SHILAP Revista de lepidopterología.46 indexed citations
16.
Gutman, İvan, et al.. (2011). On the common–neighborhood energy of a graph. MyPrints@UOM (Mysore University Library).9 indexed citations
17.
Gutman, İvan, Boris Furtula, Biljana Đ. Glišić, Violeta Marković, & Aleksander Vesel. (2007). Estrada index of acyclic molecules. INDIAN JOURNAL OF CHEMISTRY- SECTION A. 46(5). 723–728.6 indexed citations
Gutman, İvan & Janez Žerovnik. (2002). Corroborating a Modification of the Wiener Index. University of Maribor digital library (University of Maribor).15 indexed citations
20.
Gutman, İvan, et al.. (1997). On the Calculation of the Path Numbers 1Z, 2Z and the Hosoya Z Index. Hrčak Portal of scientific journals of Croatia (University Computing Centre).1 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.