Timeline for Notion of a "smooth function of the order two" (Yakubovich, "Index Transforms")
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Dec 7, 2019 at 19:08 | comment | added | Pietro Majer | It's less common than "regular of order k", yet I've seen several times. Also, a google search of "smooth of order " gives tens of thousands of results... | |
| Dec 7, 2019 at 17:39 | vote | accept | kolaka | ||
| Dec 7, 2019 at 17:39 | comment | added | kolaka | Thanks, also for the little anecdote! That sounds totally plausible, in particular considering the fact that the term "infinitely smooth" appears too (I have missed that). It's interesting however that Yakubovich's book is the only source I know of, where "smooth of order $k$" appears. So at least in written documents this does not seem to be a common expression. | |
| Dec 7, 2019 at 10:43 | history | answered | Pietro Majer | CC BY-SA 4.0 |