[seqfan] Re: Arabic Poetry Sequences

Thu Aug 29 20:28:18 CEST 2019

Ali,

How likely do you think other people are to look these up in the OEIS? I
doubt anyone besides yourself would. Also, we tend to be a bit more
stringent with sequences of 0s and 1s, because they can more easily get in
the way of people searching for more obviously math-related sequences.

Just my two cents.
Al

On Thu, Aug 29, 2019 at 8:33 AM Neil Sloane <njasloane at gmail.com> wrote:

> My feeling is that these are not really appropriate for the OEIS.
>
> Best regards
> Neil
>
> Neil J. A. Sloane, President, OEIS Foundation.
> 11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
> Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
> Phone: 732 828 6098; home page: http://NeilSloane.com
> Email: njasloane at gmail.com
>
>
>
> On Thu, Aug 29, 2019 at 5:06 AM Ali Sada via SeqFan <seqfan at list.seqfan.eu
> >
> wrote:
>
> >  Hi Antti,
> > Thank you for your response. Yes, I meant the sequences at the end of the
> > email. I put them here again in OEIS format. And yes, they are periodic.
> > The poem can go up to hundreds of verses, and each one is with the same
> > format.
> > I have no idea if there is any mathematical interest in them. As far as I
> > know, I might be the first one to replace the "/" and the "o" with "1"
> and
> > "0", respectively. This system could be used in cryptography, for
> > example.Also, it might be interesting to compare these rhythms with
> rhythms
> > from other cultures, like Farsi poetry as you mentioned. Maybe someone
> can
> > check English rhythms replacing C,V, #, etc. with numbers.
> > In any case, this was just a suggestion.
> > Best,
> > Ali
> >
> > 1.      Al-Taweel-The Long
> >
> >
> >
> >
> >
> 1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0
> >
> >
> >
> > 2.      Al-Madid-The Extended
> >
> >
> >
> >
> >
> 1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0
> >
> >
> >
> >
> 1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0
> >
> >
> >
> >
> >
> 1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0
> >
> >
> >
> > 3.      Al-Baseet-Plain
> >
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0
> >
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,1,1,0
> >
> >
> >
> > 4.      Al-Wafer- The Abundant
> >
> >
> >
> >
> >
> 1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,0,1,1,0,1,0
> >
> >
> >
> >
> 1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,0
> >
> >
> >
> > 5.      Al-Kamel-The Perfect
> >
> >
> >
> >
> >
> 1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0,1,1,1,0,1,1,0
> >
> >
> >
> > 6.      Al-Hazaj- The Lilt
> >
> >
> >
> >
> >
> 1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0
> >
> > 1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0
> >
> >
> >
> >
> >
> > 7.      Al-Rajaz- The Wind Vibration
> >
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0
> >
> >
> >
> > 1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0
> >
> >
> >
> >
> >
> >
> >
> > 8.      Al-Raml- The Sand
> >
> >
> >
> >
> >
> 1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0
> >
> >
> >
> > 9.      Al-Saree’-The Fast
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0
> >
> >
> >
> > 10.  Al-Munsareh- TheSloping (water goes down on aslope)
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,1,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,1,1,0
> >
> >
> >
> > 1,0,1,0,1,1,0,1,0,1,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1
> >
> >
> >
> > 11.  Al-Khafif- The Light(light weight)
> >
> >
> >
> >
> >
> 1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0
> >
> >
> >
> >
> >
> > 12.  Al-Mudhare’- TheSimilar
> >
> >
> >
> >
> >
> 1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0
> >
> >
> >
> > 1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0
> >
> >
> >
> > 13.  Al-Muqtadhab- The Brief
> >
> >
> >
> >
> >
> 1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0
> >
> >
> >
> > 1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0
> >
> >
> >
> > 14.  Al-Mujtath- TheDeducted
> >
> >
> >
> >
> >
> 1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,1,0,1,0
> >
> >
> >
> > 1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,0,1,0,1,1,0,1,0,1,1,0,1,0
> >
> >
> >
> > 15.  Al-Mutaqareb- TheConverged
> >
> >
> >
> >
> >
> 1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0
> >
> >
> >
> >
> >
> 1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0
> >
> >
> >
> > 16.  Al-Khabab- The Trot
> >
> >
> >
> > 1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0
> >
> >
> >
> > 1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,0,1,1,0
> >
> >
> >
> >
> >
> >
> >     On Wednesday, August 28, 2019, 2:25:58 PM EDT, Antti Karttunen <
> > antti.karttunen at gmail.com> wrote:
> >
> >  On 8/25/19, Ali Sada via SeqFan <seqfan at list.seqfan.eu> wrote:
> > >
> > > Hi Everyone,
> > >
> > >
> > >
> > > Please see below the "sequences" of classic Arabic poetry. Do you think
> > they
> > > should be added to OEIS?
> > >
> >
> > Do you mean those 0/1-sequences at the end of your mail? Should they
> > be finite or periodic? Is there any specific mathematical interest in
> > them?
> >
> > >
> > >
> > > Best,
> > >
> > >
> > >
> > > Ali
> > >
> > >
> > > The "sequences" (called “buhour,” Arabic for “seas.”) were discovered
> in
> > the
> > > 8th century by the great Iraqi scholar Al-Khalil ibn Ahmad Al-Farahidi,
> > who
> > > was a linguist, philologist,cryptographer, lexicographer, musician, and
> > > grammarian.
> >
> > See also https://en.wikipedia.org/wiki/Pingala (mentioned also by
> > Knuth in his Vol. 4A, chapter "History of Combinatorial Generation")
> > who investigated Sanskrit prosody.
> >
> > I don't myself know much about Arabic poetry, but I like many Persian
> > ones, like this: https://www.youtube.com/watch?v=mNRnCVLERdU
> >
> >
> > Best regards,
> >
> > Antti
> >
> >
> > >
> > >
> > >
> > > The bahar (sea) has one main sequence. Sometimes these sequences get
> > > replaced by "lighter" versions.
> > >
> > >
> > >
> > > Each Arab poem consists of few to hundreds of verses. The verse is
> called
> > > bayt, which is Arabic for house. Each bayt could be written as a string
> > of
> > > “on” and “off” type of symbols. The “on” sign means “moving,”and the
> > “off”
> > > sign means “static.” The original signs used by Arabic scholars are “/”
> > and
> > > “o,” so it is perfectly logical to use 1 and 0 instead.
> > >
> > >
> > >
> > > There are 28 Arabic letters, 3 of them are long vowels (“ɑ” as in bath,
> > “u”
> > > as in moon, and “i” as in seen.) There are also 3 harakat (plural of
> > haraka,
> > > which means movement in Arabic.) These harakat are actually short
> vowels
> > (“ɛ”
> > > as in pet, “ʊ” as in put, and “ɪ” as in pit.)
> > >
> > >
> > >
> > > The structure of the Arabic rhythms is based on these three rules:
> > >
> > >
> > >
> > > i)                  A constant sound that is not associated with any
> > vowel
> > > sound is called“saken, which means static.) It is represented by a “0.”
> > For
> > > example, the “t”in the word “put” is static, and in poetry it is
> > represented
> > > by a “0.”
> > >
> > > ii)                  A constant sound that is associated with a short
> > vowel
> > > is considered one“moving” part. For example, the sound “p” and the
> sound
> > “ʊ”
> > > in the word “put”are considered one moving part. So, the representation
> > of
> > > the single word “put”is 10.
> > >
> > > iii)                A constant sound that is associated with a long
> > vowel is
> > > considered“moving,” and the long sound is considered static. So, the
> > > representation ofthe word “pa” is 10.
> > >
> > >
> > >
> > >
> > >
> > > Examples:
> > >
> > > Paton= moving “p,” static “y,” moving “t,”and static “n.” 1010
> > >
> > > Josephine= moving “j,” static “o,” moving“z,” moving “f,” static “ee,”
> > and
> > > static “n.” 101100
> > >
> > > Wodroow Wilson eating pizza= 1010101010101010
> > >
> > >
> > >
> > > Arabic classic buhour are:
> > >
> > >
> > >
> > > 1.      Al-Taweel-The Long
> > >
> > > 1101011010101101011011011010110101011010110110
> > >
> > >
> > >
> > > 2.      Al-Madid-The Extended
> > >
> > > 101101010110101101010110101101010110101101010110
> > >
> > > 10110101011010110101011010101101011010
> > >
> > > 101101010110101011010101101010110101011010
> > >
> > >
> > >
> > >
> > >
> > > 3.      Al-Baseet-Plain
> > >
> > > 101011010110101011010110101011010110101011010110
> > >
> > > 10101101011010101101010110101101010110
> > >
> > > 1010110101101010110111010101101011010101101110
> > >
> > >
> > >
> > >
> > >
> > > 4.      Al-Wafer- The Abundant
> > >
> > > 110111011011101101011010110111011011101101011010
> > >
> > > 11011101101110110101101110110111011010
> > >
> > >
> > >
> > > 5.      Al-Kamel-The Perfect
> > >
> > > 111011011101101110110111011011101101110110
> > >
> > >
> > >
> > > 6.      Al-Hazaj- The Lilt
> > >
> > > 110101011010101101010110101011010101101010
> > >
> > > 1101010110101011010101101010
> > >
> > >
> > >
> > > 7.      Al-Rajaz- The Wind Vibration
> > >
> > > 101011010101101010110101011010101101010110
> > >
> > > 1010110101011010101101010110
> > >
> > >
> > >
> > > 8.      Al-Raml- The Sand
> > >
> > > 101101010110101011010101101010110101011010
> > >
> > >
> > >
> > >
> > >
> > > 9.      Al-Saree’-The Fast
> > >
> > > 10101101010110101101010110101011010110
> > >
> > >
> > >
> > >
> > >
> > > 10.  Al-Munsareh- TheSloping (water goes down on a slope)
> > >
> > > 10101101011011011101010110101101101110
> > >
> > > 10101101011011010110101101
> > >
> > >
> > >
> > >
> > >
> > > 11.  Al-Khafif- The Light(light weight)
> > >
> > > 101101010101101011010101101010101101011010
> > >
> > >
> > >
> > >
> > >
> > > 12.  Al-Mudhare’- TheSimilar
> > >
> > > 110101010110101101010110101010110101101010
> > >
> > > 1101010101101011010101011010
> > >
> > >
> > >
> > >
> > >
> > > 13.  Al-Muqtadhab- The Brief
> > >
> > > 101010110101101010110101010110101101010110
> > >
> > > 1010101101011010101011010110
> > >
> > >
> > >
> > > 14.  Al-Mujtath- TheDeducted
> > >
> > > 101011010110101011010101011010110101011010
> > >
> > > 1010110101101010101101011010
> > >
> > >
> > >
> > >
> > >
> > > 15.  Al-Mutaqareb- TheConverged
> > >
> > > 1101011010110101101011010110101101011010
> > >
> > > 1101011010110101101011010110101101011010
> > >
> > >
> > >
> > >
> > >
> > > 16.  Al-Khabab- The Trot
> > >
> > > 10101010101010101010101010101010
> > >
> > > 101101011010110101101011010110
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > --
> > > Seqfan Mailing list - http://list.seqfan.eu/
> > >
> >
> > --
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>

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