Results 21 to 30 of about 1,087,987 (259)

Utilization of a Pseudo-Stochastic Model of Terrain in Simulation of Vibrations and Snubbing in Road Means of Transport

open access: yesCommunications, 2003
Physical and geometrical properties of environment lead to mathematical models of terrain- vehicle interaction. The basic idea of the presented approach is to construct a two - dimensional function whose three-dimensional graph has properties similar to ...
Blahoslav Harman, Viktor Ferencey
doaj   +1 more source

On Nonlinear Functions of Linear Combinations [PDF]

open access: yesSIAM Journal on Scientific and Statistical Computing, 1984
The paper is concerned with the approximation of multivariate functions by expressions of the form \((*)\quad \sum^{n}_{i=1}g_ i(a_{i1}x_ 1+...+a_{in}x_ n)\) more precisely, with the exact representations of functions in this form. A typical result is Theorem 3: Let \(f\in C^ n([0,1]^ 2)\).
Diaconis, Persi, Shahshahani, Mehrdad
openaire   +1 more source

Geodiversity assessment with global and local spatial multicriteria analysis

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
The paper reports on geodiversity assessments of three national parks in Poland, performed independently by experts and volunteers. Each national park selected for the study represents one of three morphogenetically different landscape types: mountains ...
Alicja Najwer   +3 more
doaj   +1 more source

Linear combinations of composition operators on H ∞ $H^{\infty }$ spaces over the unit ball and polydisk

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we characterize completely the compactness of linear combinations of composition operators acting on the space H ∞ ( B N ) $H^{\infty }(\mathbb{B}_{N})$ of bounded holomorphic functions over the unit ball B N $\mathbb{B}_{N}$ from two ...
Xingxing Yao
doaj   +1 more source

OPTIMAL LINEAR IMAGE COMBINATION [PDF]

open access: yesThe Astrophysical Journal, 2011
A simple, yet general, formalism for the optimized linear combination of astrophysical images is constructed and demonstrated. The formalism allows the user to combine multiple undersampled images to provide oversampled output at high precision. The proposed method is general and may be used for any configuration of input pixels and point spread ...
Rowe, Barnaby   +2 more
openaire   +2 more sources

Existence of common fixed points for linear combinations of contractive maps in enhanced probabilistic metric spaces

open access: yesNonlinear Analysis, 2019
In this paper, we introduce the concept of enhanced probabilistic metric space (briefly EPM-space) as a type of probabilistic metric space. Also, we investigate the existence of fixed points for a (finite or infinite) linear combination of different ...
Jafari Jafari   +3 more
doaj   +1 more source

Combining Linear and Nonlinear Diffusion [PDF]

open access: yesAdvanced Nonlinear Studies, 2004
Abstract In this paper we study a generalized porous medium equation where the diffusion rate, say m(x) -spatially heterogeneous- is assumed to be linear, m = 1, on a piece of the support domain, Ω 1 and slow nonlinear, m(x) > 1, in its complement, Ω m
Delgado Delgado, Manuel   +2 more
openaire   +3 more sources

Merging Alternate Remotely-Sensed Soil Moisture Retrievals Using a Non-Static Model Combination Approach

open access: yesRemote Sensing, 2016
Soil moisture is an important variable in the coupled hydrologic and climate system. In recent years, microwave-based soil moisture products have been shown to be a viable alternative to in situ measurements.
Seokhyeon Kim   +4 more
doaj   +1 more source

Linear combination of chi-squares for multinomial process monitoring

open access: yesGestão & Produção, 2021
: Marcucci (1985) proposed a chi square goodness of fit statistic based generalized p-chart for multinomial process monitoring. A chi square distribution quantile was considered as a control chart limit.
Ramzi Talmoudi   +2 more
doaj   +1 more source

Recognition by linear combinations of models [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 1991
An approach to visual object recognition in which a 3D object is represented by the linear combination of 2D images of the object is proposed. It is shown that for objects with sharp edges as well as with smooth bounding contours, the set of possible images of a given object is embedded in a linear space spanned by a small number of views.
Shimon Ullman, Ronen Basri
openaire   +1 more source

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