Výsledky vyhledávání - "Jorge Picado"

Akademický článek

Autor: Igor Arrieta, Jorge Picado, Ales Pultr

Publikováno v: Categories and General Algebraic Structures with Applications, Vol 20, Iss 1, Pp 105-129 (2024)

A locale (frame) L has a largest spatial sublocale generated by the primes (spectrum points), the spatial part SpL. In this paper we discuss some of the properties of the embeddings SpL ⊆ L. First we analyze the behaviour of the spatial parts in th

Externí odkaz: https://doaj.org/article/d93a468518cc48a3ac7bf83e782fa577

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Akademický článek

Another proof of Banaschewski's surjection theorem

Autor: Dharmanand Baboolal, Jorge Picado, Ales Pultr

Publikováno v: Categories and General Algebraic Structures with Applications, Vol 11, Iss Special Issue Dedicated to Prof. George A. Gratzer, Pp 113-130 (2019)

We present a new proof of Banaschewski's theorem stating that the completion lift of a uniform surjection is a surjection. The new procedure allows to extend the fact (and, similarly, the related theorem on closed uniform sublocales of complete unifo

Externí odkaz: https://doaj.org/article/d54b2366407b4f92a57478fa2dc56c79

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Akademický článek

Localic maps constructed from open and closed parts

Autor: Ales Pultr, Jorge Picado

Publikováno v: Categories and General Algebraic Structures with Applications, Vol 6, Iss Speical Issue on the Occasion of Banaschewski's 90th Birthday (I), Pp 21-35 (2017)

Assembling a localic map $fcolon Lto M$ from localic maps $f_icolon S_ito M$, $iin J$, defined on closed resp. open sublocales $(J$ finite in the closed case$)$ follows the same rules as in the classical case. The corresponding classical facts immedi

Externí odkaz: https://doaj.org/article/bb9c18031d7347b2845076f9158e65a5

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Akademický článek

Implicaciones sedimentológicas sobre el cambio en la cobertura del bosque de manglar en Boca Zacate, Humedal Nacional Térraba-Sierpe, Costa Rica

Autor: Ana Margarita Silva Benavides, Jorge Picado Barboza, Fernando Mora Rodríguez, Carmen González Gairaud

Publikováno v: Revista de Biología Tropical, Vol 63, Iss 3, Pp 591-601 (2015)

Resumen:En los últimos sesenta años han ocurrido cambios en el Humedal Nacional Térraba-Sierpe, Costa Rica. Los cambios en la geomorfología costera están asociados a la erosión o acreción de sedimentos, lo que ha favorecido la eliminación de

Externí odkaz: https://doaj.org/article/00585a3c56594f3283b2ad0115569202

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Frame presentations of compact hedgehogs and their properties

Autor: Javier Gutiérrez García, Igor Arrieta, Jorge Picado

Publikováno v: Quaestiones Mathematicae; Vol. 46 No. 2 (2023); 207–242

This paper considers the compact hedgehog as a frame presented by generators and relations, based on the presentation of the frame of extended real numbers. The main focus will be on the point-free version of continuous and semicontinuous functions t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acf60076941734b6caa6f92eef86ded9
https://www.ajol.info/index.php/qm/article/view/246371

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Uniform continuity of pointfree real functions via farness and related Galois connections

Autor: Ana Belén Avilez, Jorge Picado

Publikováno v: Algebra universalis. 83

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04eb3d38001dff18fc88748f65c38423
https://doi.org/10.1007/s00012-022-00795-0

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Predation of Gecarcinus quadratus (Decapoda: Gecarcinidae) by Aramides cajaneus (Gruiformes: Rallidae) in Costa Rica

Autor: Jorge Picado-Masís, Sergio Villegas-Retana

Publikováno v: Revista Ciencias Marinas y Costeras. :23-26

espanolGecarcinus quadratus es un cangrejo terrestre depredado por algunas especies, sin embargo, hay poca informacion en el nivel de genero y especie de sus predadores. Esta nota cientifica presenta el primer registro de Aramides cajaneus depredando

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7eace49c923d35f6f0c555aa6a940633
https://doi.org/10.15359/revmar.13-2.2

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Classification of aquatic macroinvertebrates in flow categories for the adjustment of the LIFE Index to Costa Rican rivers

Autor: Francisco Quesada-Alvarado, Jorge Picado-Barboza, Gerardo Umaña-Villalobos, Monika Springer

Publikováno v: Ecohydrology & Hydrobiology vol.21 368-376 2021
Repositorio UNA
Universidad Nacional de Costa Rica
instacron:UNA

IRET The LIFE Index can be useful to determine the effect of changes in river flow on the community of aquatic macroinvertebrates and as a tool for the implementation of environmental flows. This study demonstrates how to classify aquatic macroinvert

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9dcad9ae97b598da2db27d33a02737d
https://doi.org/10.1016/j.ecohyd.2020.08.005

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Uniformities and a quantale structure on localic groups

Autor: Jorge Picado, Aleš Pultr

Publikováno v: Bulletin of the Belgian Mathematical Society - Simon Stevin. 28

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c834aea087e75474a176c19efec09bc
https://doi.org/10.36045/j.bbms.210823

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On Equalizers in the Category of Locales

Autor: Aleš Pultr, Jorge Picado

Publikováno v: Applied Categorical Structures. 29:267-283

The fact that equalizers in the context of strongly Hausdorff locales (similarly like those in classical spaces) are closed is a special case of a standard categorical fact connecting diagonals with general equalizers. In this paper we analyze this a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f4a5782309a5e756c542a5fbb3cdd3e
https://doi.org/10.1007/s10485-020-09616-8

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