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1 year, 4 months ago
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This question does not appear to be about research level mathematics within the scope defined in the
Why is the Ekeland variational theorem called the Ekeland variational principle?
I think (or maybe I studied somewhere) this is because of its equivalency with the Takahashi theorem, the Caristi theorem and completeness of space. But one of my colleagues believes this is because of its fundamental influence in variational analysis.
Can one help me about the history of this calling?
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Jan 4, 2022 at 17:34
In this particular case the word "principle" most likely became attached to Ekeland's variational theorem because of the title of the paper where he derived it:
Jan 5, 2022 at 9:18
Carlo Beenakker Carlo Beenakker
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