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Additivity properties of operator ranges
(Elsevier Science Inc, 2013-12)
In the present paper we study different conditions regarding the sum of operator ranges. In particular, we find conditions on operators A, B which imply that R(A+B)=R(A)+R(B) and derive some results concerning projections.
Restoration of a riparian forest: Analysis of the effective productivity of operations under conditions of uncertaintyRestauração de uma mata ciliar: Análise da produtividade efetiva das operações sob condições de incertezas
(2021-01-01)
The uncertainties related to the operations of models for forest restoration can include edaphic-climatic conditions, seedling species and quality, technology levels of equipment and qualification of workers, precedents ...
Economic viability of the whole tree harvest under conditions of uncertainty: a study in southeastern Brazil
(Taylor & Francis Inc, 2022-02-03)
Investments in mechanized wood harvesting operations are characterized by demanding capital and presenting uncertainties associated with productive and economic factors. The economic analysis based on the Monte Carlo method ...
A Berestycki-Lions' type result to a quasilinear elliptic problem involving the 1-Laplacian operator
(2021-08-01)
In this work we study a quasilinear elliptic problem involving the 1-Laplacian operator in RN, whose nonlinearity satisfy conditions similar to those ones of the classical work of Berestycki and Lions. Several difficulties ...
Serial conditional discrimination and temporal bisection in rats selectively lesioned in the dentate gyrus
(ELSEVIER SCIENCE BV, 2011)
In positive serial conditional discrimination, animals respond during a target stimulus when it is preceded by a feature stimulus, but they do not respond when the same target stimulus is presented alone. Moreover, the ...
Weighted inequalities for some integral operators with rough kernels
(Versita, 2014-04)
In this paper we study integral operators with kernels $$K(x,y) = k_1 (x - A_1 y) \cdots k_m \left( {x - A_m y} \right),$$ $$k_i \left( x \right) = {{\Omega _i \left( x \right)} \mathord{\left/ {\vphantom {{\Omega _i \left( ...
Experimental performance of a direct evaporative cooler operating during summer in a Brazilian city
(Elsevier B.V., 2005-11-01)
This paper presents the basic principles of the evaporative cooling process for human thermal comfort, the principles of operation for the direct evaporative cooling system and the mathematical development of the equations ...
OPTIMAL OPERATION OF RESERVOIRS FOR ELECTRIC GENERATION
(Ieee-inst Electrical Electronics Engineers IncNew York, 1991)
Ladder operators for subtle hidden shape-invariant potentials
(Iop Publishing Ltd, 2004-10-29)
Ladder operators can be constructed for all potentials that present the integrability condition known as shape invariance, satisfied by most of the exactly solvable potentials. Using the superalgebra of supersymmetric ...