Results 11 to 20 of about 6,187,768 (281)

The Queue-Number of Posets of Bounded Width or Height [PDF]

open access: yesCoRR, 2018
Heath and Pemmaraju conjectured that the queue-number of a poset is bounded by its width and if the poset is planar then also by its height. We show that there are planar posets whose queue-number is larger than their height, refuting the second conjecture.
Knauer, Kolja   +2 more
core   +7 more sources

Stack number and queue number of graphs

open access: yesCoRR, 2023
In this paper we give an overview of the graph invariants queue number and stack number (the latter also called the page number or book thickness). Due to their similarity, it has been studied for a long time, whether one of them is bounded in terms of the other. It is now known that the stack number is not bounded by the queue number.
Straka, Adam
openaire   +3 more sources

On Linear Layouts of Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2004
In a total order of the vertices of a graph, two edges with no endpoint in common can be \emphcrossing, \emphnested, or \emphdisjoint. A \emphk-stack (respectively, \emphk-queue, \emphk-arch) \emphlayout of a graph consists of a total order of the ...
Vida Dujmović, David R. Wood
doaj   +1 more source

On the Queue Number of Planar Graphs [PDF]

open access: yes2010 IEEE 51st Annual Symposium on Foundations of Computer Science, 2010
We prove that planar graphs have poly-logarithmic queue number, thus improving upon the previous polynomial upper bound. Consequently, planar graphs admit 3D straight-line crossing-free grid drawings in small volume.
Giuseppe Di Battista   +2 more
openaire   +3 more sources

Fishing vessel queue model in Kutaraja Fishing Port: Case study of Wharf Pias II [PDF]

open access: yesE3S Web of Conferences, 2022
Kutaraja international Fishing Port is one of the biggest port with highest activity in Aceh Province. Nevertheless, when unloading process, fishing vessel often occur long queue of fishing vessel.
Rahayu Rosi   +3 more
doaj   +1 more source

Priority Auctions and Queue Disciplines that Depend on Processing Time [PDF]

open access: yes, 2004
Lecture on the first SFB/TR 15 meeting, Gummersbach, July, 18 - 20, 2004We analyze the allocation of priority in queues via simple bidding mechanisms. In our model, the stochastically arriving customers are privately informed about their own processing ...
Thomas Kittsteiner   +3 more
core   +2 more sources

An Improved Upper Bound on the Queue Number of Planar Graphs

open access: yesAlgorithmica, 2022
AbstractAk-queue layout is a special type of a linear layout, in which the linear order avoids$$(k+1)$$(k+1)-rainbows, that is,$$k+1$$k+1independent edges that pairwise form a nested pair. The optimization goal is to determine thequeue numberof a graph, which is defined as the minimum value ofkfor which ak-queue layout is feasible.
Michael A. Bekos   +2 more
openaire   +2 more sources

The Local Queue Number of Graphs with Bounded Treewidth [PDF]

open access: yes, 2020
Appears in the Proceedings of the 28th International Symposium on Graph Drawing and Network Visualization (GD 2020)
Merker, Laura, Ueckerdt, Torsten
openaire   +3 more sources

Distributed Queuing in Dynamic Networks [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
We consider the problem of forming a distributed queue in the adversarial dynamic network model of Kuhn, Lynch, and Oshman (STOC 2010) in which the network topology changes from round to round but the network stays connected.
Gokarna Sharma, Costas Busch
doaj   +1 more source

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