On Approximating Cutwidth and Pathwidth

N Bansal, D Katzelnick… - 2024 IEEE 65th Annual …, 2024 - ieeexplore.ieee.org
We study graph ordering problems with a min-max objective. A classical problem of this type
is cutwidth, where given a graph we want to order its vertices such that the number of edges …

[HTML][HTML] Strong SDP based bounds on the cutwidth of a graph

E Gaar, D Puges, A Wiegele - Computers & Operations Research, 2024 - Elsevier
Given a linear ordering of the vertices of a graph, the cutwidth of a vertex v with respect to
this ordering is the number of edges from any vertex before v (including v) to any vertex after …

Matching patterns with variables

F Manea, ML Schmid - … on Words: 12th International Conference, WORDS …, 2019 - Springer
A pattern α α (ie, a string of variables and terminals) matches a word w, if w can be obtained
by uniformly replacing the variables of α α by terminal words. The respective matching …

Matching patterns with variables under hamming distance

P Gawrychowski, F Manea, S Siemer - arxiv preprint arxiv:2106.06249, 2021 - arxiv.org
A pattern $\alpha $ is a string of variables and terminal letters. We say that $\alpha $
matches a word $ w $, consisting only of terminal letters, if $ w $ can be obtained by …

Target set selection for conservative populations

U Feige, S Kogan - Discrete Applied Mathematics, 2021 - Elsevier
Abstract Let G=(V, E) be a graph on n vertices, where d (v) denotes the degree of vertex v,
and t (v) is a threshold associated with v. We consider a process in which initially a set S of …

-local Graphs

C Beth, P Fleischmann, A Huch, D Kazempour… - arxiv preprint arxiv …, 2024 - arxiv.org
In 2017 Day et al. introduced the notion of locality as a structural complexity-measure for
patterns in the field of pattern matching established by Angluin in 1980. In 2019 Casel et al …

Matching Patterns with Variables in Approximate Settings

S Siemer - 2024 - ediss.uni-goettingen.de
This Chapter is divided into four sections. In the first Section 1.1, I will introduce the original
problem of matching patterns with variables, which is the central underlying concept for the …

Blocksequences of k-local Words

P Fleischmann, L Haschke, F Manea… - SOFSEM 2021: Theory …, 2021 - Springer
The locality of words is a relatively young structural complexity measure, introduced by Day
et al. in 2017 in order to define classes of patterns with variables which can be matched in …

On Special k-Spectra, k-Locality, and Collapsing Prefix Normal Words

P Fleischmann - 2021 - macau.uni-kiel.de
The domain of Combinatorics on Words, first introduced by Axel Thue in 1906, covers by
now many subdomains. In this work we are investigating scattered factors as a …