Results 31 to 40 of about 855,011 (194)

Turbocharging Treewidth Heuristics [PDF]

, 2017
A widely used class of algorithms for computing tree decompositions of graphs are heuristics that compute an elimination order, i.e., a permutation of the vertex set. In this paper, we propose to turbocharge these heuristics.
Gaspers, Serge, Gudmundsson, Joachim, Jones, Mitchell   +2 more
core   +1 more source

Ramsey-type graph coloring and diagonal non-computability [PDF]

, 2014
A function is diagonally non-computable (d.n.c.) if it diagonalizes against the universal partial computable function. D.n.c. functions play a central role in algorithmic randomness and reverse mathematics.
Patey, Ludovic
core   +3 more sources

Exploring $\pp$ scattering in the $\1N$ picture [PDF]

, 1995
In the large $N_c$ approximation to $QCD$, the leading $\pp$ scattering amplitude is expressed as the sum of an infinite number of tree diagrams. We investigate the possibility that an adequate approximation at energies up to somewhat more than one $GeV$
A. Salomone, A.A. Bolokhov, C. Callan, C.D. Froggatt, C.D. Roberts, D. Morgan, E. Witten, E.P. Wigner, Francesco Sannino, G. Ecker, G. Ecker, G. Meissner, G. Veneziano, G. Veneziano, G. Wentzel, J. Donoghue, J. Gasser, J. Gasser, J. L. Basdevant, J. L. Basdevant, J. Polchinski, J. Schechter, J. Weinstein, Joseph Schechter, K. Kawarabayashi, L. Montanet, M. Bando, N.N. Achasov, O. Kaymakcalan, R. Kaminski, R.L. Jaffe, Riazuddin, S. Coleman, S. Coleman, S. Weinberg, S. Weinberg, S.M. Roy   +36 more
core   +3 more sources

First draft genome assembly of the Argane tree (Argania spinosa) [PDF]

, 2018
Background: The Argane tree (Argania spinosa L. Skeels) is an endemic tree of southwestern Morocco that plays an important socioeconomic and ecologic role for a dense human population in an arid zone.
Abdelwahd, Rabha, Alché, Juan de Dios, Azza, Nour Elhouda, Badad, Oussama, Badraoui, Mohamed, Boukhatem, Noureddine, Chaouni, Bouchra, Claros, M Gonzalo, Dahan, Rachid, Diria, Ghizlane, El Mousadik, Abdelhamid, Essayeh, Soumaya, Gaboun, Fatima, Ganoudi, Matika, Ghazal, Hassan, Hamamouch, Noureddine, Iraqi, Driss, Khalfaoui, Mohamed, Khayi, Slimane, Labhilili, Mustapha, Legssyer, Adelkhaleq, Lightfoot, David A, Mdarhi, Meriem Alaoui, Memari, Majid, Mentag, Rachid, Merrouch, Redouane, Mouhaddab, Jamila, Mrabet, Rachid, Pirro, Stacy, Rahim, Bouchra, Sedrati, Hayat, Tatusova, Tatiana, Unver, Turgay, Van de Peer, Yves   +33 more
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The effect of zeolite, organic and inorganic fertilizers on soil chemical properties, growth and biomass yield of apple trees

Plant, Soil and Environment, 2009
The objective of this study was to evaluate the influence of organic (cattle manure) and inorganic fertilizers [composite NPK (15:15:15)] and natural zeolites on soil properties, vegetative growth and yield of apple plants grown on vertisol under Cacak ...
T. Milosevic, N. Milosevic
doaj   +1 more source

Sudoku number of graphs

AKCE International Journal of Graphs and Combinatorics, 2023
We introduce a concept in graph coloring motivated by the popular Sudoku puzzle. Let [Formula: see text] be a graph of order n with chromatic number [Formula: see text] and let [Formula: see text] Let [Formula: see text] be a k-coloring of the induced ...
J. Maria Jeyaseeli, G. C. Lau, W. C. Shiu, S. Arumugam   +3 more
doaj   +1 more source

Negative density dependence and environmental heterogeneity effects on tree ferns across succession in a tropical montane forest. [PDF]

, 2014
Although tree ferns are an important component of temperate and tropical forests, very little is known about their ecology. Their peculiar biology (e.g., dispersal by spores and two-phase life cycle) makes it difficult to extrapolate current knowledge on
Chacón-Labella, Julia, Cruz Rot, Marcelino de la, Escudero, Adrián, Tapia, Karla, Vicuña, Rafael   +4 more
core   +3 more sources

Nucleon Decay Matrix Elements from Lattice QCD [PDF]

, 1999
We present a model-independent calculation of hadron matrix elements for all dimension-six operators associated with baryon number violating processes using lattice QCD.
A. S. Kronfeld, A. Ukawa, A. X. El-Khadra, C. Bernard, C. Caso, C. T. H. Davies, D. G. Richards, F. Butler, F. Wilczek, G. Martinelli, G. P. Lepage, G. W. Kilcup, J. F. Donoghue, K-I. Ishikawa, K. C. Bowler, K. C. Bowler, K. Kanaya, L. F. Abbott, M. B. Gavela, M. Claudson, M. Fukugita, M. Okawa, N. Ishizuka, N. Tsutsui, N. Tsutsui, N. Yamada, P. B. Mackenzie, R. Groot, S. Aoki, S. Chadha, S. Hashimoto, S. Itoh, S. J. Brodsky, S. Kawabata, S. Kawabata, S. Kaya, S. Tominaga, S. Weinberg, S. Y. Hsueh, T. Bhattacharya, T. Kaneda, T. Onogi, T. Yoshié, Y. Hara, Y. Iwasaki, Y. Kuramashi   +45 more
core   +2 more sources

Partial k-trees with maximum chromatic number

Discrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Mixed Fault Classification of Sensorless PMSM Drive in Dynamic Operations Based on External Stray Flux Sensors

Sensors, 2022
This paper aims to classify local demagnetisation and inter-turn short-circuit (ITSC) on position sensorless permanent magnet synchronous motors (PMSM) in transient states based on external stray flux and learning classifier.
Sveinung Attestog, Jagath Sri Lal Senanayaka, Huynh Van Khang, Kjell G. Robbersmyr   +3 more
doaj   +1 more source