Search Results - "Hamza, Nabila"

Essential Self-adjointness for Combinatorial Schrödinger Operators II-Metrically non Complete Graphs by Colin de Verdière, Yves, Torki-Hamza, Nabila, Truc, Françoise

“…We consider weighted graphs, we equip them with a metric structure given by a weighted distance, and we discuss essential self-adjointness for weighted graph…”
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Spatiotemporal variation of arbuscular mycorrhizal fungal colonization in olive (Olea europaea L.) roots across a broad mesic-xeric climatic gradient in North Africa by Meddad-Hamza, Amel, Hamza, Nabila, Neffar, Souad, Beddiar, Arifa, Gianinazzi, Silvio, Chenchouni, Haroun

“…This study aims to determine the spatiotemporal dynamics of root colonization and spore density of arbuscular mycorrhizal fungi (AMF) in the rhizosphere of…”
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Arbuscular mycorrhizal fungi and fertilization rates optimize tomato (Solanum lycopersicum L.) growth and yield in a Mediterranean agroecosystem by Ziane, Hana, Hamza, Nabila, Meddad-Hamza, Amel

“…Arbuscular mycorrhizal fungi (AMF) allow plants to make better use of water and minerals. This alliance concerns the majority of crops and might greatly limit…”
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The Gauss-Bonnet operator of an infinite graph by Anné, Colette, Torki-Hamza, Nabila

“…We propose a general condition, to ensure essential self-adjointness for the Gauss-Bonnet operator D = d + δ , based on a notion of completeness as Chernoff…”
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Sectoriality and Essential Spectrum of Non Symmetric Graph Laplacians by Anné, Colette, Balti, Marwa, Torki-Hamza, Nabila

“…We consider a non self-adjoint Laplacian on a directed graph with non symmetric edge weights. We give sufficient conditions for this Laplacian to be sectorial…”
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Difficulties and outlook in formulating biodiversity indicators for the publication "Indicators for the sustainable management of French forests" by HAMZA, Nabila

“…With the IFN and GIP Ecofor, the Ministerial conference for the protection of European forests (MCPFE) in 2005 was an opportunity to evaluate the national…”
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Difficulties and outlook in formulating biodiversity indicators for the publication "Indicators for the sustainable management of French forests" by Nabila Hamza

“…With the IFN and GIP Ecofor, the Ministerial conference for the protection of European forests (MCPFE) in 2005 was an opportunity to evaluate the national…”
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A graph without zero in its spectra by Anné, Colette, Ayadi, Hela, Balti, Marwa, Torki-Hamza, Nabila

“…In this paper we consider the discrete Laplacian acting on 1-forms and we study its spectrum relative to the spectrum of the 0-form Laplacian. We show that the…”
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Focus : Élaboration des indicateurs de biodiversité de la publication « Les indicateurs de gestion durable des forêts françaises », difficultés et perspectives Difficulties and outlook in formulating biodiversity indicators for the publication "Indicators for the sustainable management of French forests" by Nabila Hamza

“…Le projet « Évaluation des indicateurs nationaux de biodiversité forestière » mené en 2007 par l'Inventaire forestier national (IFN) dans le cadre d'un appel…”
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Focus : Élaboration des indicateurs de biodiversité de la publication « Les indicateurs de gestion durable des forêts françaises », difficultés et perspectives by HAMZA, Nabila

“…Le projet « Évaluation des indicateurs nationaux de biodiversité forestière » mené en 2007 par l'Inventaire forestier national (IFN) dans le cadre d'un appel…”
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Modeling climate change effects on the potential production of French plains forests at the sub-regional level by Loustau, D, Bosc, A, Colin, A, Ogee, J, Davi, H, Francois, C, Dufrene, E, Deque, M, Cloppet, E, Arrouays, D

“…We modeled the effects of climate change and two forest management scenarios on wood production and forest carbon balance in French forests using process-based…”
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Élaboration des indicateurs de biodiversité de la publication « Les indicateurs de gestion durable des forêts françaises », difficultés et perspectives: Politiques publiques et biodiversité : Problématiques scientifiques, enjeux politiques et actions locales by HAMZA, Nabila

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Focus : Élaboration des indicateurs de biodiversité de la publication « Les indicateurs de gestion durable des forêts françaises », difficultés et perspectives by Hamza, Nabila

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Self-adjointness of magnetic laplacians on triangulations by Anné, Colette, Ayadi, Hela, Chebbi, Yassin, Torki-Hamza, Nabila

“…The notions of magnetic difference operator defined on weighted graphs or magnetic exterior derivative are discrete analogues of the notionof covariant…”
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M-accretive Laplacian on a non symmetric graph by Anné, Colette, Balti, Marwa, Torki-Hamza, Nabila

“…We consider a non self-adjoint Laplacian on a directed graph with non symmetric weights on edges. We give a criterion for the m-accretiveness and the…”
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Sectoriality and essential spectrum of non symmetric graph Laplacians by Anné, Colette, Balti, Marwa, Torki-Hamza, Nabila

“…We consider a non self-adjoint Laplacian on a directed graph with non symmetric edge weights. We give necessary conditions for this Laplacian to be sectorial…”
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Essential self-adjointness for combinatorial Schr\"odinger operators I- Metrically complete graphs by Torki-Hamza, Nabila

“…We introduce the weighted graph Laplacian and the notion of Schr\"odinger operator on a locally finite weighted graph. Concerning essential self-adjointness,…”
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The Gau{\ss}-Bonnet operator of an infinite graph by Anné, Colette, Torki-Hamza, Nabila

“…We propose a general condition, to ensure essential self-adjointness for the Gau{\ss}-Bonnet operator, based on a notion of completeness as Chernoff. This…”
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Laplaciens de graphes infinis I Graphes m\'etriquement complets by Torki-Hamza, Nabila

“…Confluentes Mathematici (CM) 2, 3 (2010) 333-350 We introduce the weighted graph Laplacian and the notion of Schr\"odinger operator on a locally finite…”
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Essential self-adjointness for combinatorial Schr\"odinger operators III- Magnetic fields by De Verdière, Yves Colin, Torki-Hamza, Nabila, Truc, Francoise

“…Annales de la Facult\'e des Sciences de Toulouse 20, 3 (2011) 597-609 We define the magnetic Schr\"odinger on an infinite graph by the data of a magnetic…”
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