Results 61 to 70 of about 144,269 (377)

Paris vu par Terenci Moix : un étranger au paradis ? (Étude du troisième tome de ses mémoires Extraño en el paraíso)

open access: yesCahiers d’Études Romanes, 2001
Tout comme le suggère le titre du troisième tome des mémoires de Terenci Moix, Extraño en el paraiso (Etranger au paradis), Paris est la ville de tous les espoirs pour le jeune Catalan qui arrive dans la capitale de la France alors que l’Espagne vit sous
Philippe Merlo
doaj   +1 more source

Catalan--Spitzer permutations

open access: yesEnumerative Combinatorics and Applications, 2023
We study two classes of permutations intimately related to the visual proof of Spitzer's lemma and Huq's generalization of the Chung-Feller theorem. Both classes of permutations are counted by the Fuss-Catalan numbers. The study of one class leads to a generalization of results of Flajolet from continued fractions to continuants. The study of the other
Richard Ehrenborg   +2 more
openaire   +3 more sources

Twitter como herramienta de comunicación política en el contexto del referéndum independentista catalán: asociaciones ciudadanas frente a instituciones públicas

open access: yes, 2018
espanolEl presente articulo hace un analisis e interpretacion de los contenidos difundidos a traves de Twitter por parte de las cuentas oficiales de las principales instituciones publicas y asociaciones ciudadanas relacionadas con el referendum catalan ...
Rafael Carrasco Polaino   +2 more
semanticscholar   +1 more source

Tailored Crystallization Dynamics for Efficient and Stable DMSO‐Free Tin Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
In this work, the authors investigated the crystallization process of tin perovskites in a DMSO‐free solvent system using in situ PL technique. The authors discovered that a synergistic approach effectively facilitates the formation of high‐quality DMSO‐free tin perovskite films by modulating the emergence of crystallites and the aggregation process ...
Shengnan Zuo   +22 more
wiley   +1 more source

Quaternion-Type Catalan Transforms of the ρ-Fibonacci and ρ-Lucas Numbers

open access: yesJournal of Mathematics, 2023
In this paper, we define a new sequence called the quaternion-type Catalan sequence and give generating function, exponential representation, quaternionic Catalan matrix and its some properties.
Kübra Gül
doaj   +1 more source

Shifted Hankel determinants of Catalan numbers and related results II: Backward shifts [PDF]

open access: yesarXiv, 2023
By prepending zeros to a given sequence Hankel determinants of backward shifts of this sequence become meaningful. We obtain some results for the sequences of Catalan numbers and of some numbers and polynomials which are related to Catalan numbers and propose conjectures for sequences of convolution powers of Catalan numbers.
arxiv  

Catalan pairs: A relational-theoretic approach to Catalan numbers

open access: yesAdvances in Applied Mathematics, 2010
AbstractWe define the notion of a Catalan pair (which is a pair of binary relations (S,R) satisfying certain axioms) with the aim of giving a common language to several combinatorial interpretations of Catalan numbers. We show, in particular, that the second component R uniquely determines the pair, and we give a characterization of R in terms of ...
DISANTO, FILIPPO   +3 more
openaire   +6 more sources

High‐Quality Epitaxial Five‐Layer Aurivillius Films with In‐Plane Ferroelectricity for Electrocaloric Cooling

open access: yesAdvanced Electronic Materials, EarlyView.
High‐quality epitaxial five‐layer Sr2Bi4Ti5O18Aurivillius films are grown on SrTiO3 by pulsed laser deposition. The electrocaloric effect derived from measurements of the in‐plane ferroelectric polarization reveals a maximum temperature change of ΔT ∼ 0.95 °C under an electric field of 150 kV cm⁻¹ at 135 °C.
Sara Lafuerza   +10 more
wiley   +1 more source

Neuromusculoskeletal Arm Prostheses: Personal and Social Implications of Living With an Intimately Integrated Bionic Arm

open access: yesFrontiers in Neurorobotics, 2020
People with limb loss are for the first time living chronically and uninterruptedly with intimately integrated neuromusculoskeletal prostheses.
Alexandra Middleton   +4 more
doaj   +1 more source

Parametric Catalan numbers and Catalan triangles

open access: yesLinear Algebra and its Applications, 2013
Abstract Here presented a generalization of Catalan numbers and Catalan triangles associated with two parameters based on the sequence characterization of Bell-type Riordan arrays. Among the generalized Catalan numbers, a class of large generalized Catalan numbers and a class of small generalized Catalan numbers are defined, which can be considered ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy