Results 121 to 130 of about 10,785 (236)

La emergencia natural de la moneda en la teoría de Carl Menger y los modelos de búsqueda monetaria The spontaneus emergence of money in Carl Menger's theory and the search monetary approach: The limits, of the money merchandise

open access: yesCuadernos de Economía, 2001
Este artículo propone un diálogo entre la teoría del orígen de la moneda de C. Menger (1871) y los modelos contemporáneos de búsqueda. Este ejercício permite poner en evidencia los limítes de la teoría que pretende explicar la moneda a partir de la ...
Alvarez Carlos Andrés
doaj  

Zweidimensionale Polymere als modulare metallfreie Festkörperkatalysatoren für die effiziente sono‐piezo‐photokatalytische Wasserstoffperoxidherstellung

open access: yesAngewandte Chemie, Volume 138, Issue 22, 25 May 2026.
Diese Studie demonstriert die hohe piezo‐photokatalytische Aktivität von festen molekulare Katalysatoren (Englisch: Solid Molecular Catalysts, SMCs) bei der Produktion von Wasserstoffperoxid aus Wasser und Sauerstoff. Durch den rationalen Entwurf der molekularen Motive (Diphenylpyridin oder Terpyridin) sowie der Rückgratfunktionalitäten (Methylgruppe ...
Sarah Brettschneider   +7 more
wiley   +1 more source

L'éponge de Menger -itération 5-

open access: yes, 2014
The Menger sponge -iteration 5- (L'éponge de Menger -itération 5-
Colonna, Jean-François
core   +1 more source

LA EMERGENCIA NATURAL DE LA MONEDA EN LA TEORÍA DE CARL MENGER Y LOS MODELOS DE BÚSQUEDA MONETARIA: LOS LÍMITES DE LA MONEDA-MERCANCíA

open access: yesCuadernos de Economía, 2001
Este artículo propone un diálogo entre la teoria del origen de la moneda de C. Menger (1871) y los modelos contemporáneos de bús­queda. Este ejercicio permi te poner en evidencia los limi tes de la teoría que pretende explicar la moneda a partir de la ...
Andrés Alvarez
doaj  

On star-C-menger spaces

open access: yes, 2015
A space X is star-C-Menger if for each sequence (Un : n ∈ N) of open covers of X there exists a sequence (Ksub>n : n ∈ N) of countably compact subsets of X such that {St(Kn; Un) : n ∈ N} is an open cover of X.
Yin, Zheng, Song, Yan-Kui
core  

Solving Fredholm Integral Equations Using Probabilistic F-Contractions

open access: yesAxioms
Fixed-point theory plays a pivotal role in addressing equations that model various real-life applications, offering robust methods to find solutions that remain stable under different conditions and dynamics.
Ismail Tahiri   +3 more
doaj   +1 more source

Grouplike Menger algebras. [PDF]

open access: yesFundamenta Mathematicae, 1973
openaire   +1 more source

Some weak covering properties and infinite games

open access: yesOpen Mathematics, 2014
Sakai Masami
doaj   +1 more source

[Business card of Max Menger]

open access: yes
With handwritten notes.1 business card(カール・メンガー文庫の手沢本および関連資料のデジタル化公開)は公益財団法人図書館振興財団の2024年度の助成を受けて実施しています。Location of original: Center for Historical Social Science Literature, Hitotsubashi University44 ...
Menger, Max, 1838-1911
core  

Sự bảo tồn một số tính chất topo qua ánh xạ liên tục

open access: yesTạp chí Khoa học và Công nghệ
Bài toán về sự bảo tồn các tính chất topo thông qua các ánh xạ là một trong những bài toán trọng tâm của topo đại cương. Vào năm 2015, Y. K. Song và R. Li đã chứng minh rằng, không gian Hurewicz yếu được bảo tồn qua ánh xạ liên tục ([1]).
Nguyễn Xuân Trúc   +3 more
doaj  

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