Search Results - "Narins, Lothar"
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1
A Density Turán Theorem
Published in Journal of graph theory (01-06-2017)“…Let F be a graph that contains an edge whose deletion reduces its chromatic number. For such a graph F, a classical result of Simonovits from 1966 shows that…”
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Graphs without proper subgraphs of minimum degree 3 and short cycles
Published in Combinatorica (Budapest. 1981) (01-06-2017)“…We study graphs on n vertices which have 2 n −2 edges and no proper induced subgraphs of minimum degree 3. Erdős, Faudree, Gyárfás, and Schelp conjectured that…”
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3
Strong Ramsey games: Drawing on an infinite board
Published in Journal of combinatorial theory. Series A (01-08-2017)“…Consider the following strong Ramsey game. Two players take turns in claiming a previously unclaimed edge of the complete graph on n vertices until all edges…”
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A Stability Theorem for Matchings in Tripartite 3-Graphs
Published 23-01-2017“…It follows from known results that every regular tripartite hypergraph of positive degree, with $n$ vertices in each class, has matching number at least $n/2$…”
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5
Case Study: Leveraging GenAI to Build AI-based Surrogates and Regressors for Modeling Radio Frequency Heating in Fusion Energy Science
Published 09-09-2024“…This work presents a detailed case study on using Generative AI (GenAI) to develop AI surrogates for simulation models in fusion energy research. The scope…”
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6
A Density Tur\'an Theorem
Published 11-03-2015“…J. Graph Theory 85 (2017), 496-524 Let $F$ be a graph which contains an edge whose deletion reduces its chromatic number. For such a graph $F,$ a classical…”
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7
NarrationBot and InfoBot: A Hybrid System for Automated Video Description
Published 07-11-2021“…Video accessibility is crucial for blind and low vision users for equitable engagements in education, employment, and entertainment. Despite the availability…”
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On the connectivity Waiter-Client game
Published 20-10-2015“…In this short note we consider a variation of the connectivity Waiter-Client game $WC(n,q,\mathcal{A})$ played on an $n$-vertex graph $G$ which consists of…”
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Graphs without proper subgraphs of minimum degree 3 and short cycles
Published 22-08-2014“…We study graphs on $n$ vertices which have $2n-2$ edges and no proper induced subgraphs of minimum degree $3$. Erd\H{o}s, Faudree, Gy\'arf\'as, and Schelp…”
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Extremal Hypergraphs for Ryser's Conjecture: Connectedness of Line Graphs of Bipartite Graphs
Published 31-12-2013“…In this paper we consider a natural extremal graph theoretic problem of topological sort, concerning the minimization of the (topological) connectedness of the…”
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Extremal Hypergraphs for Ryser's Conjecture: Home-Base Hypergraphs
Published 31-12-2013“…Ryser's Conjecture states that any $r$-partite $r$-uniform hypergraph has a vertex cover of size at most $r - 1$ times the size of the largest matching. For $r…”
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12
Approximation and Hardness for Token Swapping
Published 02-08-2016“…Algorithms-ESA 2016, Proc. 24th Annual European Symposium on Algorithms, Aarhus, 2016, Leibniz International Proceedings in Informatics (LIPIcs), pp…”
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13
Strong Ramsey Games: Drawing on an infinite board
Published 18-05-2016“…We consider the strong Ramsey-type game $\mathcal{R}^{(k)}(\mathcal{H}, \aleph_0)$, played on the edge set of the infinite complete $k$-uniform hypergraph…”
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