■ 刊行論文
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原著
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1.
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豊田昌史:
Caristiの不動点定理とBourbaki-Kneserの不動点定理.
京都大学数理解析研究所講究録,
2194
:97
-104
, 2021
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2.
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Yasunori Kimura, Masashi Toyoda:
Fixed point theorem in ball spaces and Caristi's fixed point theorem.
Journal of Nonlinear and Convex Analysis
23
:185
-189
, 2022
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3.
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Koji Aoyama, Masashi Toyoda:
Fixed point theorem for a Meir-Keeler type mapping in a metric space with a transitive relation.
Transylvanian Journal of Mathematics and Mechanics
14
:1
-9
, 2022
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