The Riemann zeta function and tuning: Difference between revisions
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We may define the ''strict zeta edos'' to be the edos that are in all four of the above lists. The list of strict zeta edos begins {{EDOs|2, 5, 7, 12, 19, 31, 53, 270, 1395, 1578, 8539, 14348, 58973}}... . | We may define the ''strict zeta edos'' to be the edos that are in all four of the above lists. The list of strict zeta edos begins {{EDOs|2, 5, 7, 12, 19, 31, 53, 270, 1395, 1578, 8539, 14348, 58973}}... . | ||
If we want to find the second-best edos ranked by zeta peaks, then given a full list of zeta peaks, we can remove the successively higher peaks to get another sequence of succesively higher peaks, which correspond to edos called '''Parker edos'''. | |||
'''Parker edos'''{{idiosyncratic}} | |||
Non-zeta-peak edos with a higher zeta peak than any smaller non-zeta-peak edo. Named after the Parker square in mathematics. A helpful list for finding an alternative to any given zeta peak edo of similar size and still-okay accuracy, but with different regular temperament properties (e.g. 9 as alternative to 10, 17 as alternative to 19). | |||
{{EDOs|6, 8, 9, 14, 15, 17, 24, 34, 46, 58, 65, 77, 87, 111, 140, 183, 243, 301, 311, 460, 472, 525, 571, 581, 814, 836, 882, 1205}}... | |||
We can then remove those secondary peaks again to get '''Grothendieck edos'''. | |||
'''Grothendieck edos'''{{idiosyncratic}} | |||
Non-zeta-peak edos with a higher zeta peak than any smaller non-zeta-peak ''or'' Parker edo. Named after the "Grothendieck prime" (the number 57), another reference to the "almost" nature of these edos. | |||
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We can do this as many times as we want, resulting in '''''k''-ary peak edos'''{{idiosyncratic}}. The ordinary peak edos are 1-ary (primary) peak edos, Parker edos are 2-ary (secondary) peak edos, and so on. | |||
=== Non-record edos === | |||
The following lists of edos are not determined by successively large measured values, they are edos that satisfy some other property relating to zeta peaks instead. | |||
'''Local zeta edos'''{{idiosyncratic}} | '''Local zeta edos'''{{idiosyncratic}} |