Results 71 to 80 of about 1,694 (268)

Farm labor scarcity and its uneven impacts on crop producers in the United States

American Journal of Agricultural Economics, EarlyView.
Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray, Alexandra E. Hill, Iman Haqiqi, J. Edward Taylor, Thomas W. Hertel   +4 more
wiley   +1 more source

Fine Gradings of Low-Rank Complex Lie Algebras and of Their Real Forms

Symmetry, Integrability and Geometry: Methods and Applications, 2008
In this review paper, we treat the topic of fine gradings of Lie algebras. This concept is important not only for investigating the structural properties of the algebras, but, on top of that, the fine gradings are often used as the starting point for ...
Milena Svobodová
doaj  

Morita Equivalence of Brandt Semigroup Algebras

International Journal of Mathematics and Mathematical Sciences, 2012
We show that Banach semigroup algebras of any two Brandt semigroups over a fixed group are Morita equivalence with respect to the Morita theory of self-induced Banach algebras introduced by Grønbæk.
Maysam Maysami Sadr
doaj   +1 more source

The automorphism group of Poisson algebras on k[x; y]

Қарағанды университетінің хабаршысы. Математика сериясы, 2017
Poisson algebras play a key role in the Hamiltonian mechanics, symplectic geometry and also are central in the study of quantum groups. At present, Poisson algebras are investigated by the many mathematicians of Russia, France, the USA, Brazil ...
U. Turusbekova, G. Azieva
doaj   +1 more source

Algebraically generated groups and their Lie algebras

Journal of the London Mathematical Society
AbstractThe automorphism group of an affine variety is an ind‐group. Its Lie algebra is canonically embedded into the Lie algebra of vector fields on . We study the relations between subgroups of and Lie subalgebras of . We show that a subgroup generated by a family of connected algebraic subgroups of is algebraic if and only if the Lie algebras
Kraft, Hanspeter, Zaidenberg, Mikhail
openaire   +3 more sources

Toward a Behavioral Reserve Model in Amyotrophic Lateral Sclerosis

Annals of Neurology, EarlyView.
Objective Behavioral impairment is common in amyotrophic lateral sclerosis (ALS) and strongly affects autonomy, caregiver burden, and outcomes, yet predictors of vulnerability remain unclear. We investigated whether premorbid regulatory traits and socio‐educational exposures are associated with behavioral phenotypes in ALS within a behavioral reserve ...
Francesca Palumbo, Barbara Iazzolino, Cristina Moglia, Umberto Manera, Enrico Matteoni, Sara Cabras, Giorgio Pellegrino, Emilio Minerva, Vita Passidomo, Rosario Vasta, Gabriele Mora, Fabrizio D’Ovidio, Antonio Canosa, Andrea Calvo, Adriano Chiò   +14 more
wiley   +1 more source

Amenability in Group Algebras and Banach Algebras.

MATHEMATICA SCANDINAVICA, 1994
There are many known examples of Banach algebras \(\mathfrak A\) that can be shown to be amenable by the construction of a dense-ranged homomorphism from the group algebra of an amenable group into \(\mathfrak A\). To answer the question of whether this criterion is necessary for amenability, many amenable Banach algebras are constructed for which ...
openaire   +2 more sources

The Manifestation of the Electrochemical Potential Gradient in the Kinetic Landscapes of Interfacial Electrochemistry

Angewandte Chemie International Edition, EarlyView.
The overpotential constitutes an electrochemical potential difference at the solid–liquid interface, which can manifest itself in different ways. In general, it can not only drive the reaction along the reaction coordinate, but also modulate chemical potentials in the extended environment that shape activation barriers, without necessarily being a ...
Sebastian Z. Oener, Caroline J. Aschendorf, Jody Druce, Francisco Sarabia, Carlos Gomez Rodellar, Mathieu Lizée, Alex Ricardo Silva Olaya, Soumyadip Mondal, Raquel Anastacio Amaral, Hađer Sinanović, Beatriz Roldan Cuenya   +10 more
wiley   +1 more source

On a Notion of Biflatness Related to a Closed Ideal

Journal of Function Spaces
This study is motivated through the so-called approximate homology results of Banach algebras arising from their closed ideals. For a Banach algebra A, the notion of approximate I-biflatness is presented, where I is a closed ideal of A.
Amir Sahami, Eghbal Ghaderi, Mona Aj, Abasalt Bodaghi   +3 more
doaj   +1 more source

Cohomology and Crossed Modules of Modified Rota–Baxter Pre-Lie Algebras

Mathematics
The goal of the present paper is to provide a cohomology theory and crossed modules of modified Rota–Baxter pre-Lie algebras. We introduce the notion of a modified Rota–Baxter pre-Lie algebra and its bimodule.
Fuyang Zhu, Wen Teng
doaj   +1 more source