I see articles using this expression, but I’m having difficulty finding a formal definition of it. Is it just a colloquialism?
edit: here's an example of its use: http://matwbn.icm.edu.pl/ksiazki/aa/aa91/aa9136.pdf
2026-04-04 03:54:29.1775274869
Is ‘pure exponential sum’ not an item of standard terminology?
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