Hayatoshi Sayama

29 papers and 515 indexed citations i.

About

Hayatoshi Sayama is a scholar working on Control and Systems Engineering, Computational Theory and Mathematics and Numerical Analysis. According to data from OpenAlex, Hayatoshi Sayama has authored 29 papers receiving a total of 515 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Control and Systems Engineering, 10 papers in Computational Theory and Mathematics and 9 papers in Numerical Analysis. Recurrent topics in Hayatoshi Sayama’s work include Optimization and Variational Analysis (9 papers), Advanced Optimization Algorithms Research (8 papers) and Nanofluid Flow and Heat Transfer (6 papers). Hayatoshi Sayama is often cited by papers focused on Optimization and Variational Analysis (9 papers), Advanced Optimization Algorithms Research (8 papers) and Nanofluid Flow and Heat Transfer (6 papers). Hayatoshi Sayama collaborates with scholars based in Japan, United States and China. Hayatoshi Sayama's co-authors include Hiroyuki Ozoe, Stuart W. Churchill, Kenji Yamamoto, Y. Sawaragi, Hirotaka Nakayama, Yasuko Shimada, Tsutomu Shibata, Hiromasa Ueda, Kenta Suzuki and Kenji Suzuki and has published in prestigious journals such as International Journal of Heat and Mass Transfer, Journal of Heat Transfer and Computers & Chemical Engineering.

In The Last Decade

Co-authorship network of co-authors of Hayatoshi Sayama i

Fields of papers citing papers by Hayatoshi Sayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hayatoshi Sayama

Since Specialization
Citations

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

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.

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2025