Results 31 to 40 of about 1,094,169 (129)
Journal of Mathematics, Volume 2023, Issue 1, 2023., 2023 This study investigates the estimation of the regression function using the kernel method in the presence of missing at random responses, assuming spatial dependence, and complete observation of the functional regressor. We construct the asymptotic properties of the established estimator and derive the probability convergence (with rates) as well as ...
Fatimah Alshahrani +5 more
wiley +1 more source
Affine Connection Representation of Gauge Fields
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 There are two ways to unify gravitational field and gauge field. One is to represent gravitational field as principal bundle connection, and the other is to represent gauge field as affine connection. Poincaré gauge theory and metric‐affine gauge theory adopt the first approach. This paper adopts the second.
Zhao-Hui Man, Sunny Vagnozzi
wiley +1 more source
Advances in Mathematical Physics, Volume 2021, Issue 1, 2021., 2021 In this article, Box‐Cox and Yeo‐Johnson transformation models are applied to two time series datasets of monthly temperature averages to improve the forecast ability. An application algorithm was proposed to transform the positive original responses using the first model and the stationary responses using the second model to improve the nonparametric ...
Sameera Abdulsalam Othman +2 more
wiley +1 more source
Theoretical Economics, Volume 16, Issue 1, Page 129-160, January 2021., 2021 Predictions about the future are commonly evaluated through statistical tests. As shown by recent literature, many known tests are subject to adverse selection problems and cannot discriminate between forecasters who are competent and forecasters who are uninformed but predict strategically.
Luciano Pomatto
wiley +1 more source
The local triangle axiom in topology and domain theory
Applied General Topology, 2013 We introduce a general notion of distance in weakly separated topological spaces. Our approach differs from existing ones since we do not assume the reflexivity axiom in general.
Pawel Waszkiewicz
doaj +1 more source
Mathematics, 2018 The T1-spaces induced by the fuzzy semi-metric spaces endowed with the special kind of triangle inequality are investigated in this paper. The limits in fuzzy semi-metric spaces are also studied to demonstrate the consistency of limit concepts in the ...
Hsien-Chung Wu
doaj +1 more source
Convergence in Fuzzy Semi-Metric Spaces
Mathematics, 2018 The convergence using the fuzzy semi-metric and dual fuzzy semi-metric is studied in this paper. The infimum type of dual fuzzy semi-metric and the supremum type of dual fuzzy semi-metric are proposed in this paper. Based on these two types of dual fuzzy
Hsien-Chung Wu
doaj +1 more source
Groups acting on semimetric spaces and quasi-isometries of monoids [PDF]
Transactions of the American Mathematical Society, 2012 We study groups acting by length-preserving transformations on spaces equipped with asymmetric, partially-defined distance functions. We introduce a natural notion of quasi-isometry for such spaces and exhibit an extension of the Švarc-Milnor lemma to this setting.
Gray, Robert, Kambites, Mark
openaire +3 more sources
Common Coincidence Points and Common Fixed Points in Fuzzy Semi-Metric Spaces
Mathematics, 2018 We propose the so-called fuzzy semi-metric space in which the symmetric condition is not assumed to be satisfied. In this case, there are four kinds of triangle inequalities that should be considered.
Hsien-Chung Wu
doaj +1 more source
Distance and closeness measures in information spaces [PDF]
, 2006 Obiettivo della tesi è fornire strumenti teorici per il trattamento di informazione “incompleta”. Ciò viene fatto, da un lato, in un ambito metrico, definendo misure di “distanza” tra oggetti, dall’altro definendo nozioni suggerite dalla logica a più ...
Coppola, Cristina
core +1 more source