# Talk:Lacunary sequence

From Encyclopedia of Mathematics

Post $\TeX$ notes

- I replace the sequence notation $\{\cdot\}$ by the more usual $(\cdot)$, uncomment the
`\newcommand`

for`\seq`

at the start of the file to revert this - I'm not entirely sure about the MSC here, could someone check it?

--Jjg 22:04, 3 May 2012 (CEST)

- About MSC: problematic indeed; but I believe that 42A55 "Lacunary series of trigonometric and other functions; Riesz products" is naturally the secondary classification, since it gives the main motivation here.
- And maybe 11B05 "Density, gaps, topology" rather than just 11Bxx? Indeed, lacunary sequences are somehow of very small density, with many large gaps. --Boris Tsirelson 22:31, 3 May 2012 (CEST)
- Agreed, thanks Boris --Jjg 23:41, 3 May 2012 (CEST)

**How to Cite This Entry:**

Lacunary sequence.

*Encyclopedia of Mathematics.*URL: http://www.encyclopediaofmath.org/index.php?title=Lacunary_sequence&oldid=25914