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.
On the variational principle
19741.5k citationsIvar EkelandJournal of Mathematical Analysis and Applicationsprofile →
This map shows the geographic impact of Ivar Ekeland'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 Ivar Ekeland with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ivar Ekeland more than expected).
This network shows the impact of papers produced by Ivar Ekeland. 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 Ivar Ekeland. The network helps show where Ivar Ekeland may publish in the future.
Co-authorship network of co-authors of Ivar Ekeland
This figure shows the co-authorship network connecting the top 25 collaborators of Ivar Ekeland.
A scholar is included among the top collaborators of Ivar Ekeland 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 Ivar Ekeland. Ivar Ekeland is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Perturbation results for a class of singular Hamiltonian systems
1989·Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni·Antonio Ambrosetti,
Ivar Ekeland
2
12
Minimax results of Lusternik-Schnirelman type and applications : part 2 of the proceedings of the NATO ASI "Variational Methods in Nonlinear Problems"
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