Results 1 to 10 of about 133 (92)

DC grid load flow solution incorporating generic DC/DC converter topologies

open access: yesEnergy Reports, 2023
This research proposes a load flow (LF) solver with DC/DC converter models for DC distribution. The solver is based on modified-augmented-nodal-analysis (MANA) formulation and is implemented with the Newton–Raphson (NR) algorithm.
Zahid Javid   +3 more
doaj   +1 more source

Stochastic control liaisons: Richard Sinkhorn meets gaspard monge on a schr\uf6dinger bridge [PDF]

open access: yes, 2021
In 1931-1932, Erwin Schr\uf6dinger studied a hot gas Gedankenexperiment (an instance of large deviations of the empirical distribution). Schr\uf6dinger's problem represents an early example of a fundamental inference method, the so-called maximum entropy
Chen, Y., Georgiou, T. T., Pavon, M.
core   +1 more source

Extensions of Kantorovich-type theorems for Newton’s method [PDF]

open access: yesApplicationes Mathematicae, 2020
Summary: We extend the applicability of Newton's method, so we can approximate a locally unique solution of a nonlinear equation in a Banach space setting in cases not covered before. To achieve this, we find a more precise set containing the Newton iterates than in earlier works.
Argyros, Ioannis K.   +2 more
openaire   +2 more sources

Approximation Theorems for Generalized Complex Kantorovich‐Type Operators [PDF]

open access: yesJournal of Applied Mathematics, 2012
The order of simultaneous approximation and Voronovskaja‐type results with quantitative estimate for complex q‐Kantorovich polynomials (q > 0) attached to analytic functions on compact disks are obtained. In particular, it is proved that for functions analytic in {z ∈ ℂ : |z| < R}, R > q, the rate of approximation by the q‐Kantorovich ...
Mahmudov, N. I., Kara, M.
openaire   +4 more sources

Extended Newton–Kantorovich Theorem for Solving Nonlinear Equations

open access: yesFoundations, 2022
The Newton–Kantorovich theorem for solving Banach space-valued equations is a very important tool in nonlinear functional analysis. Several versions of this theorem have been given by Adley, Argyros, Ciarlet, Ezquerro, Kantorovich, Potra, Proinov, Wang, et al. This result, e.g., establishes the existence and uniqueness of the solution.
Samundra Regmi   +3 more
openaire   +1 more source

How good are Global Newton methods? Part 2 [PDF]

open access: yes, 1988
Newton's method applied to certain problems with a discontinuous derivative operator is shown to be effective. A global Newton method in this setting is exhibited and its computational complexity is estimated.
Day, Philip J.   +4 more
core   +1 more source

Mètode de Newton en espais de Banach: teorema de Kantorovich i aplicacions [PDF]

open access: yes, 2021
Treballs Finals de Grau de Matemàtiques, Facultat de Matemàtiques, Universitat de Barcelona, Any: 2021, Director: Joan Carles Tatjer i Montaña[en] Let the equation $F x=\overrightarrow{0}$, where $F: X \mapsto Y, X$ and $Y$ are Banach spaces of like ...
Fernández Benítez, Daniel
core  

Remarks on the Afriat's Theorem and the Monge-Kantorovich Problem [PDF]

open access: yesSSRN Electronic Journal, 2013
The famous Afriat's theorem from the theory of revealed preferences establishes necessary and suffient conditions for existence of utility function for a given set of choices and prices. The result on existence of a {\it homogeneous} utility function can be considered as a particular fact of the Monge-Kantorovich mass transportation theory.
Kolesnikov, Alexander V.   +2 more
openaire   +4 more sources

Towards a Political Economy of the Hunters and Gatherers: A Study in Historical Materialism [PDF]

open access: yes, 2009
This paper uses the mode of production of the hunter-gatherers as a background to explain basic economic concepts, in particular the meaning of the labour theory of value and it's relationship to optimization of resources.
Hagendorf, Klaus
core   +3 more sources

The Krawczyk operator and Kantorovich's theorem

open access: yesJournal of Mathematical Analysis and Applications, 1990
The paper deals with the comparison of Kantorovich's test for the existence of a solution of a system of nonlinear equations of the form \(F(x)=0\) and a modification of Moore's existence test based on the Krawczyk operator. The modification involves a suitable slope instead of the Jacobian matrix \(F'\) and is proved to require less computational work
Neumaier, Arnold, Zuhe, Shen
openaire   +1 more source

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