FMF, Mathematical Library, Lj. (MAKLJ)
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The (non-)existence of perfect codes in Lucas cubesMollard, MichelFibonaccijeva kocka dimenzije ▫$n$▫, označena z ▫$\Gamma_n$▫, je podgraf ▫$n$▫-kocke ▫$Q_n$▫, ki je induciran z vozlišči brez zaporednih 1. Ashrafi in njegovi soavtorji so dokazali neobstoj popolnih ... kod v ▫$\Gamma_n$▫ za ▫$n \geq 4$▫. Kot odprt problem predlagajo obravnavo obstoja popolnih kod v posplošitvah Fibonaccijevih kock. Najbolj neposredna posplošitev je družina ▫$\Gamma_n (1^s)$▫ podgrafov, induciranih z nizi, ki so brez ▫$1^s$▫ kot podniza, pri čemer je ▫$s \geq 2$▫ dano celo število. V prejšnjem članku smo dokazali obstoj popolne kode v ▫$\Gamma_n (1^s)$▫ za ▫$n = 2^p - 1$▫ in ▫$s \geq 3.2^{p-2}$▫ za vsako celo število ▫$p \geq 2$▫. Lucasovo kocko ▫$\Lambda_n$▫ dobimo iz ▫$\Gamma_n$▫ z odstranitvijo vozlišč, ki se začnejo in končajo z 1. Pogosto so isti problemi preučevani na Fibonaccijevih kockah in na Lucasovi kocki. V tem kratkem članku dokažemo neobstoj popolnih kod v ▫$\Lambda_n$▫ za ▫$n \geq 4$▫ in dokažemo eksistenco popolnih kod v nekaterih posplošenih Lucasovih kockah ▫$\Lambda_n (1^s)$▫.Source: Ars mathematica contemporanea. - ISSN 1855-3966 (Vol. 22, no. 3, 2022, #P3.10 (str. 519-525))Type of material - article, component part ; adult, seriousPublish date - 2022Language - englishCOBISS.SI-ID - 118549507
Author
Mollard, Michel
Topics
kode za popravljanje napak |
popolna koda |
Fibonaccijeva kocka |
error correcting codes |
perfect code |
Fibonacci cube
source: Ars mathematica contemporanea. - ISSN 1855-3966 (Vol. 22, no. 3, 2022, #P3.10 (str. 519-525))
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