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Are Unobservables Separable? [PDF]
SSRN Electronic Journal, 2017 It is common to assume in empirical research that observables and unobservables are additively separable, especially when the former are endogenous. This is because it is widely recognized that identification and estimation challenges arise when interactions between the two are allowed for.
Andrii Babii, Jean-Pierre Florens
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GIScience & Remote Sensing, 2017 Soil, as one of the three basic biophysical components, has been understudied using remote sensing techniques compared to vegetation and impervious surface areas (ISA).
Bingwen Qiu +4 more
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On the separability of graphs [PDF]
Discrete Mathematics, 2013 Abstract Recently, Cicalese and Milanic introduced a graph-theoretic concept called separability. A graph is said to be k -separable if any two non-adjacent vertices can be separated by the removal of at most k vertices. The separability of a graph G is the least k for which G is k -separable.
Oliver Schaudt +2 more
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Российский технологический журналObjectives. The main aim of digital image processing is to increase clarity while maintaining image quality and eliminate noise. However, the amount of information contained in digital image files is growing year after year.
A. V. Kamenskiy +2 more
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Mathematics, 2023 In this paper, we study a differential operator of parabolic type with a variable and unbounded coefficient, defined on an infinite strip. Sufficient conditions for the existence and compactness of the resolvent are established, and an estimate for the ...
Mussakan Muratbekov +2 more
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Separability of the third-order differential operator given on the whole plane
Қарағанды университетінің хабаршысы. Математика сериясы, 2022 In this paper, in the space L2(R2), we study a third-order differential operator with continuous coefficients in R (-∞ , +∞). Here, these coefficients can be unlimited functions at infinity.
A.O. Suleimbekova
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covatest: An R Package for Selecting a Class of Space-Time Covariance Functions
Journal of Statistical Software, 2020 Although a very rich list of classes of space-time covariance functions exists, specific tools for selecting the appropriate class for a given data set are needed. Thus, the main topic of this paper is to present the new R package, covatest, which can be
Claudia Cappello +2 more
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Caliber and Chain Conditions in Soft Topologies
Mathematics, 2021 In this paper, we contribute to the growing literature on soft topology. Its theoretical underpinning merges point-set or classical topology with the characteristics of soft sets (a model for the representation of uncertain knowledge initiated in 1999 ...
José Carlos R. Alcantud +2 more
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Journal of Computer and System Sciences, 1996 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lance Fortnow, Tomoyuki Yamakami
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Measures of Lindelof and separability in approach spaces
International Journal of Mathematics and Mathematical Sciences, 1994 In this paper we introduce the notions of separability and Lindelöf in approach spaces and investigate their behaviour under products and subspaces.
R. Baekeland, R. Lowen
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