Search Results - "Dujmovic, Vida"
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1
Graph layouts via layered separators
Published in Journal of combinatorial theory. Series B (01-01-2015)“…A k-queue layout of a graph consists of a total order of the vertices, and a partition of the edges into k sets such that no two edges that are in the same set…”
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Journal Article -
2
Layered separators in minor-closed graph classes with applications
Published in Journal of combinatorial theory. Series B (01-11-2017)“…Graph separators are a ubiquitous tool in graph theory and computer science. However, in some applications, their usefulness is limited by the fact that the…”
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3
Dual Circumference and Collinear Sets
Published in Discrete & computational geometry (2023)“…We show that, if an n -vertex triangulation G of maximum degree Δ has a dual that contains a cycle of length ℓ , then G has a non-crossing straight-line…”
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4
Graph product structure for non-minor-closed classes
Published in Journal of combinatorial theory. Series B (01-09-2023)“…Dujmović et al. [J. ACM '20] proved that every planar graph is isomorphic to a subgraph of the strong product of a bounded treewidth graph and a path…”
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5
On dispersable book embeddings
Published in Theoretical computer science (12-03-2021)“…In a dispersable book embedding, the vertices of a given graph G must be ordered along a line ℓ, called spine, and the edges of G must be drawn in different…”
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6
Track Layouts, Layered Path Decompositions, and Leveled Planarity
Published in Algorithmica (01-04-2019)“…We investigate two types of graph layouts, track layouts and layered path decompositions, and the relations between their associated parameters track-number…”
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7
Nonrepetitive colouring via entropy compression
Published in Combinatorica (Budapest. 1981) (01-12-2016)“…A vertex colouring of a graph is nonrepetitive if there is no path whose first half receives the same sequence of colours as the second half. A graph is…”
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8
Separating layered treewidth and row treewidth
Published in Discrete mathematics and theoretical computer science (01-01-2022)“…Layered treewidth and row treewidth are recently introduced graph parameters that have been key ingredients in the solution of several well-known open…”
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9
Proof of the Clustered Hadwiger Conjecture
Published in 2023 IEEE 64th Annual Symposium on Foundations of Computer Science (FOCS) (06-11-2023)“…Hadwiger's Conjecture asserts that every K_{h}-minor-free graph is properly (h-1)-colourable. We prove the following improper analogue of Hadwiger's…”
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Conference Proceeding -
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Adjacency Labelling for Planar Graphs (and Beyond)
Published in 2020 IEEE 61st Annual Symposium on Foundations of Computer Science (FOCS) (01-11-2020)“…We show that there exists an adjacency labelling scheme for planar graphs where each vertex of an n -vertex planar graph G is assigned a…”
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Conference Proceeding -
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On Obstacle Numbers
Published in The Electronic journal of combinatorics (01-07-2015)“…The obstacle number is a new graph parameter introduced by Alpert, Koch, and Laison (2010). Mukkamala et al. (2012) show that there exist graphs with $n$…”
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12
Graphs Drawn With Some Vertices per Face: Density and Relationships
Published in IEEE access (2024)“…Graph drawing beyond planarity is a research area that has received an increasing attention in the last twenty years, driven by the necessity to mitigate the…”
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13
Geodesic obstacle representation of graphs
Published in Computational geometry : theory and applications (01-02-2023)“…An obstacle representation of a graph is a mapping of the vertices onto points in the plane and a set of connected regions of the plane (called obstacles) such…”
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14
Notes on growing a tree in a graph
Published in Random structures & algorithms (01-09-2019)“…We study the height of a spanning tree T of a graph G obtained by starting with a single vertex of G and repeatedly selecting, uniformly at random, an edge of…”
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15
A Center Transversal Theorem for Hyperplanes and Applications to Graph Drawing
Published in Discrete & computational geometry (2013)“…Motivated by an open problem from graph drawing, we study several partitioning problems for line and hyperplane arrangements. We prove a ham-sandwich cut…”
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16
New Bounds for Facial Nonrepetitive Colouring
Published in Graphs and combinatorics (01-07-2017)“…We prove that the facial nonrepetitive chromatic number of any outerplanar graph is at most 11 and of any planar graph is at most 22…”
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17
Average Stretch Factor: How Low Does It Go?
Published in Discrete & computational geometry (01-03-2015)“…In a geometric graph G , the stretch factor between two vertices u and w is the ratio between the Euclidean length of the shortest path from u to w in G and…”
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18
Drawings of planar graphs with few slopes and segments
Published in Computational geometry : theory and applications (01-10-2007)“…We study straight-line drawings of planar graphs with few segments and few slopes. Optimal results are obtained for all trees. Tight bounds are obtained for…”
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19
An affine invariant k-nearest neighbor regression estimate
Published in Journal of multivariate analysis (01-11-2012)“…We design a data-dependent metric in Rd and use it to define the k-nearest neighbors of a given point. Our metric is invariant under all affine…”
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20
Compatible Connectivity Augmentation of Planar Disconnected Graphs
Published in Discrete & computational geometry (01-09-2015)“…We consider the following compatible connectivity-augmentation problem : We are given a labeled n -vertex planar graph G that has r ≥ 2 connected components,…”
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