Olav Njåstad

3.4k citations
110 papers · 2.3k indexed · 1 hit paper · h-index 21
Topics
Mathematical functions and polynomials (78 papers)Iterative Methods for Nonlinear Equations (22 papers)Spectral Theory in Mathematical Physics (17 papers)
Partner nations
NorwaySpainBelgium

In The Last Decade

Olav Njåstad

106 papers receiving 1.8k citations

Hit Papers

On some classes of nearly open sets19652026198520051965200400600

Peers

Olav Njåstad
Comparison fields: 5 of 61
  • Applied Mathematics 1.3k
  • Computational Theory and Mathematics 982
  • Management Science and Operations Research 612
  • Numerical Analysis 409
  • Geometry and Topology 361
Replace Вилмос Тотик with:
Вилмос Тотик United States
A. M. Fink United States
Vlastimil Pták Czechia
Marek Kuczma Poland
Gradimir V. Milovanović Serbia
Reza Saadati Iran
‎Josip Pečarić Croatia
Sorin G. Gal Romania
Vladimir Rakočević Serbia
J. L. B. Cooper United States
Olav Njåstad relative to Вилмос Тотик United States Вилмос Тотик's profile →
Citations per field
00.5×5.6×
Вилмос Тотик · 1×
Citations per year

Countries citing papers authored by Olav Njåstad

Since Specialization
Citations

This map shows the geographic impact of Olav Njåstad'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 Olav Njåstad with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Olav Njåstad more than expected).

Fields of papers citing papers by Olav Njåstad

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Olav Njåstad. 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 Olav Njåstad. The network helps show where Olav Njåstad may publish in the future.

Co-authorship network of co-authors of Olav Njåstad

This figure shows the co-authorship network connecting the top 25 collaborators of Olav Njåstad. A scholar is included among the top collaborators of Olav Njåstad 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 Olav Njåstad. Olav Njåstad 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
#WorkIndexed citations
1
Axel Thue Über die Auflösbarkeit einiger unbestimmten Gleichungen
1
2 2
3 3
4 22
5
Szego quadrature and frequency analysis
3
6 13
7 1
8 17
9
Elements of a theory of orthogonal rational functions
2
10
A Favard theorem for orthogonal rational functions with poles on the unit circle
10
11 12
12 8
13 18
14 2
15 15
16 27
17 7
18 25
19 30
20 65

About Olav Njåstad

Olav Njåstad is a scholar working on Applied Mathematics, Numerical Analysis and Modeling and Simulation, having authored 110 papers that have together received 2.3k indexed citations. Recurring topics across this work include Mathematical functions and polynomials (78 papers), Iterative Methods for Nonlinear Equations (22 papers) and Spectral Theory in Mathematical Physics (17 papers). The work is most often cited by research in Applied Mathematics (1.3k citations), Numerical Analysis (409 citations) and Computational Theory and Mathematics (982 citations). Olav Njåstad has collaborated with scholars based in Norway, Spain and Belgium. Frequent co-authors include Pablo González-Vera, William B. Jones, Erik Hendriksen, Adhemar Bultheel, W. J. Thron, Haakon Waadeland, Erik M. Alfsen, Edward B. Saff, K. C. Chattopadhyay and Walter Van Assche. Their work appears in journals such as Mathematics of Computation, Journal of Mathematical Analysis and Applications and Transactions of the American Mathematical Society.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026