Results 61 to 70 of about 5,484 (263)
Hydrological characterization of the Usumacinta River Basin towards the preservation of environmental services [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 The Usumacinta basin is characterized by aboundance of natural and scenic resources. It also houses a vast biodiversity (wich also means invaluable genetic resources). Its river is the longest in Mexico (main channel length of 927 km).
F.-O. Tapia-Silva +2 more
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On Coverings and Hyperalgebras of Affine Algebraic Groups, III [PDF]
American Journal of Mathematics, 1975 Over an algebraically closed field of characteristic zero, the universal group covering of a connected affine algebraic group, if such exists, can be constructed canonically from its Lie algebra only. In particular the isomorphism classes of simply connected affine algebraic groups are in 1-1 correspondence with the isomorphism classes of finite ...
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Agribusiness, EarlyView.ABSTRACT Innovation is essential for competitiveness in agribusiness facing dynamic environments. This study examines how market orientation, marketing, relational, and social capabilities influence innovation performance. Using data from 751 Spanish firms and a multi‐method approach that integrates Structural Equation Modeling (PLS‐SEM), Necessary ...
Beatriz Corchuelo Martínez‐Azúa +1 more
wiley +1 more source
The standard graded property for vertex cover algebras of quasi-trees
Le Matematiche, 2008 In [5] the authors characterize the vertex cover algebras which are tandard graded. In this paper we give a simple combinatorial criterion for the standard graded property of vertex cover algebras in the case of quasi-trees.
Alexandru Costantinescu, Le Dinh Nam
doaj
The integrable Bullough-Dodd model under celestial holography
Journal of High Energy PhysicsWe study celestial amplitudes for the S-matrix of the 2d integrable Bullough-Dodd model. This model has bound states that appear as poles in the physics strip of its 2d S-matrix, which complicates the computation of celestial amplitudes.
Minjia Wang, Wei Fan
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Remedies for Misapplications of Sylvester’s Criterion: A Pedagogic Illustration
Spreadsheets in Education, 2021 Sylvester’s criterion, which verifies the positive definiteness of any real symmetric matrix by examining the signs of all leading principal minors, is an excellent analytical tool.
Clarence C.Y. Kwan
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Multipliers and covers of perfect diassociative algebras
Journal of Algebra and Its Applications, 2023 The paper concerns perfect diassociative algebras and their implications to the theory of central extensions. It is first established that perfect diassociative algebras have strong ties with universal central extensions. Then, using a known characterization of the multiplier in terms of a free presentation, we obtain a special cover for perfect ...
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AIChE Journal, EarlyView.Abstract Electrification of distillation offers a promising route to reducing scope‐1 emissions from one of the chemical industry's most energy‐intensive unit operations. However, conventional adiabatic columns are dynamically inflexible: Long, energy‐intensive start‐ups make shutdown and restart impractical under variable electricity prices and ...
Samuel Mercer, Michael Baldea
wiley +1 more source
Territorial planning of transport network with landslide susceptibility mapping. Case study: Timiş-Cerna corridor, Romania [PDF]
Urbanism. Arhitectura. Constructii, 2022 In this paper we present the importance of landslide susceptibility mapping for territorial planning applications on local and regional transportation networks.
Beniamin Stoica-Fuchs
doaj
On the Calkin algebra and the covering homotopy property [PDF]
Transactions of the American Mathematical Society, 1975 Let H \mathcal {H} be a separable Hilbert space,
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