Results 51 to 60 of about 1,558,342 (70)

Extending Skolem sequences, how can you begin?

open access: yes, 2008
For each n ≥ 1and1≤j ≤ n we show the existence of an extended Skolem sequence of order n starting with the symbol j.
V. Linek
core  

Skolem paradoksu'nun transandantal teşhirine giriş

open access: yes, 2020
YÖK Tez No: 651862Bu tezde Skolem paradoksunun transandantal yönden bir incelemesi gerçekleştirilmiştir. Skolem paradoksu sembolik mantık, aksiyomatik küme kuramı ve felsefeyi buluşturan bir evlektir ve bu alanlara dair gerçekci yaklaşımın temellerini ...
Erdemir, Ömer Faruk
core  

Mathematical and algorithmic methods for finding disjoint Rosa-type sequences

open access: yes, 2018
A Rosa sequence of order n is a sequence S = (s1; s2; ..., s2n+1) of 2n + 1 integers satisfying the conditions: (1) for every k ∈ {1; 2;...; n} there are exactly two elements sᵢ; sj ∈ S such that si = sj = k; (2) if sᵢ = sj = k; i < j, then j - i = k;
Alruhaymi, Fatimah
core  

New constructions of strong and Skolem starters

open access: yes
This thesis studies a class of combinatorial objects called strong starters, and their subclass, strong Skolem starters, which are generated by Skolem sequences.
Ogandzhanyants, Oleg
core  

Perfect Skolem sets [PDF]

open access: yesDiscrete Mathematics, 2008
A Skolem sequence is a sequence s1,s2,…,s2n (where si∈A={1,…,n}), each si occurs exactly twice in the sequence and the two occurrences are exactly si positions apart. A set A that can be used to construct Skolem sequences is called a Skolem set.
Gustav Nordh
exaly   +2 more sources

Universal Skolem Sets [PDF]

open access: yes, 2021
It is a longstanding open problem whether there is an algorithm to decide the Skolem Problem for linear recurrence sequences, namely whether a given such sequence has a zero term.
James Worrell   +2 more
exaly   +2 more sources
Some of the next articles are maybe not open access.

On a conjecture about (m1,m2)-near-Skolem sequences

Discrete Mathematics, 2023
Haitao Cao
exaly  

Skolem and Rosa rectangles and related designs

Discrete Mathematics, 2014
Nabil Shalaby, Václav Linek
exaly  

On (k, d)-Skolem Graceful Graphs

Electronic Notes in Discrete Mathematics, 2015
Subramanian Arumugam, Tarkeshwar Singh
exaly  

A note on strong Skolem starters

Discrete Mathematics, 2020
Adrian Vazquez-Avila
exaly  

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