Results 41 to 50 of about 11,868 (264)
Fractional coloring and the odd Hadwiger’s conjecture
European Journal of Combinatorics, 2008 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kawarabayashi, Ken-ichi, Reed, Bruce
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Changing Bases: Multistage Optimization for Matroids and Matchings [PDF]
, 2014 This paper is motivated by the fact that many systems need to be maintained continually while the underlying costs change over time. The challenge is to continually maintain near-optimal solutions to the underlying optimization problems, without creating
A. Borodin +11 more
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ESTIMATING CROP COVER FRACTION FROM DIGITAL COLOR IMAGES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Abstract. The use of automated methods to estimate crop cover fraction from digital color images has increased in recent years. Crop cover fraction can determine accurate, fast and inexpensive with this methods. A digital color images was acquired over each of the 30 sample fields in 2014 year at 2–3 week intervals.
Karakus P., Karabork H.
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Random independent sets in triangle-free graphs
Forum of Mathematics, SigmaWe establish several new results on the existence of probability distributions on the independent sets in triangle-free graphs where each vertex is present with a given probability.
Anders Martinsson, Raphael Steiner
doaj +1 more source
Local Graph Coloring and Index Coding
, 2013 We present a novel upper bound for the optimal index coding rate. Our bound uses a graph theoretic quantity called the local chromatic number. We show how a good local coloring can be used to create a good index code.
Dimakis, Alexandros G. +2 more
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Color Processing System of Art Color Based on Fractional Differential Equation
Applied Mathematics and Nonlinear Sciences, 2023 Abstract This paper mainly studies a high-precision correction method for warp knitting seamless images. The color factor conversion method is used to transform the gray level of the center point in the frequency domain. Then this paper proposes an image-denoising method based on an average way to improve image quality.
Hongyu Wang, Long Cheng, Zheng Huang
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Deterministic Distributed Edge-Coloring via Hypergraph Maximal Matching
, 2017 We present a deterministic distributed algorithm that computes a $(2\Delta-1)$-edge-coloring, or even list-edge-coloring, in any $n$-node graph with maximum degree $\Delta$, in $O(\log^7 \Delta \log n)$ rounds.
Fischer, Manuela +2 more
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Dynamical obstruction in a constrained system and its realization in lattices of superconducting devices [PDF]
, 2003 Hard constraints imposed in statistical mechanics models can lead to interesting thermodynamical behaviors, but may at the same time raise obstructions in the thoroughfare to thermal equilibration.
Castelnovo, C., Chamon, C., Pujol, P.
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Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Independent sets and cuts in large-girth regular graphs [PDF]
, 2016 We present a local algorithm producing an independent set of expected size $0.44533n$ on large-girth 3-regular graphs and $0.40407n$ on large-girth 4-regular graphs.
Csóka, Endre
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