Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Retraction Problem"'
1
On retraction problem concerning inclusion of F-contractions in almost contractions
Autor: Xavier Udo-utun
Publikováno v: Afrika Matematika. 30:643-650
We have established, in the context of metric spaces, that an F-contraction restricted to appropriate neighborhood of its fixed point is an almost contraction and obtain definition of retractions on complete metric spaces. We have illustrated such an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4107034cd7015f58491d5067bc32e12b
https://doi.org/10.1007/s13370-019-00672-5
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2
On Experimental Efficiency for Retraction Operator to Stem Basis
Autor: Joaquín Borrego-Díaz, Alejandro Trujillo Caballero, Gonzalo A. Aranda-Corral, Juan Galán-Páez
Publikováno v: Trends in Mathematics and Computational Intelligence ISBN: 9783030004842
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
In this paper, we introduce an implementation of an inference rule called “Independence Rule” which lets us reduce the size of knowledge basis based on the retraction problem. This implementation is made in a functional language, Scala, and speci
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bac470ad5b644e6e81d5dcd12888119c
https://doi.org/10.1007/978-3-030-00485-9_8
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3
Is There a Retraction Problem? And, If So, What Can We Do About It?
Autor: Ivan Oransky, Adam Marcus
The retraction of articles from the scientific literature is a growing phenomenon in scholarly publishing. Retractions, considered the “nuclear option” in scientific self-correction, are becoming more frequent. The number of retractions per year
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60cebe28ae2ec2eb91bd92ae4e50f9dc
https://doi.org/10.1093/oxfordhb/9780190497620.013.13
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4
Optimal retraction problem for proper $k$-ball-contractive mappings in $C^m [0,1]$
Autor: Diana Caponetti, G. Trombetta, Alessandro Trombetta
Publikováno v: Topol. Methods Nonlinear Anal. 53, no. 1 (2019), 111-125
In this paper for any $\varepsilon >0$ we construct a new proper $k$-ball-contractive retraction of the closed unit ball of the Banach space $C^m [0,1]$ onto its boundary with $k < 1+ \varepsilon$, so that the Wośko constant $W_\gamma (C^m [0,1])$ i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b6485ef3537cf34d32a342c1427ab1c
https://doi.org/10.12775/tmna.2018.041
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6
Algebraic obstructions and a complete solution of a rational retraction problem
Autor: Riccardo Ghiloni
Publikováno v: Proceedings of the American Mathematical Society. 130:3525-3535
For each compact smooth manifold W containing at least two points we prove the existence of a compact nonsingular algebraic set Z and a smooth map g: Z → W such that, for every rational diffeomorphism r: Z' → Z and for every diffeomorphism s: W'
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3957bea54059802338affc0f0ce4072c
https://doi.org/10.1090/s0002-9939-02-06617-0
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7
Notice of Retraction: Problem-Based Learning of Cardiovascular Physiology in Basic Medical Curriculums
Autor: Manli Xia, Rongkui Chai, Cuixia Liu, Yueyan Huang
Publikováno v: 2010 Second International Workshop on Education Technology and Computer Science.
Problem-based learning (PBL) is a student-centered and self-directed teaching approach. Compared with the traditional teaching approaches, PBL breaks the traditional discipline-based boundaries of basic medical sciences, inspires the stedents' activi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ae99554621681fbdce418944af94abb
https://doi.org/10.1109/etcs.2010.454
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9
Retractions onto series-parallel posets
Autor: Andrei Krokhin, Víctor Dalmau, Benoit Larose
Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
The poset retraction problem for a poset P is whether a given poset Q containing P as a subposet admits a retraction onto P, that is, whether there is a homomorphism from Q onto P which fixes every element of P. We study this problem for finite serie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68f35fb82c90c015754d4238d4975177
http://hdl.handle.net/10230/36343
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