Results 41 to 50 of about 144,269 (377)
Noncommutative Catalan Numbers [PDF]
Annals of Combinatorics, 2019 The goal of this paper is to introduce and study noncommutative Catalan numbers $C_n$ which belong to the free Laurent polynomial algebra in $n$ generators. Our noncommutative numbers admit interesting (commutative and noncommutative) specializations, one of them related to Garsia-Haiman $(q,t)$-versions, another -- to solving noncommutative quadratic ...
Berenstein, A., Retakh, V.
openaire +4 more sources
Assessing sleep health in a European population: Results of the Catalan Health Survey 2015
PLoS ONE, 2018 Objective To describe the overall sleep health of the Catalan population using data from the 2015 Catalan Health Survey and to compare the performance of two sleep health indicators: sleep duration and a 5-dimension sleep scale (SATED).
M. Dalmases +12 more
semanticscholar +1 more source
Angewandte Chemie, EarlyView.In this work, we report the synthesis of two robust, mesoporous metal‐organic cages or polyhedra (MOCs/MOPs) using an isoreticular expansion approach. Among them, the largest mesoporous MOP captures up to 0.47 gwater·gMOP−1, displaying an S‐shaped water sorption isotherm with a hysteresis loop.
Alba Cortés‐Martínez +12 more
wiley +2 more sources
The Cartography of Ibero-Romance Agrammatic Deficits
Biolinguistics, 2010 This paper aims at examining whether grammatical errors produced by Broca’s aphasics are a consequence of a selective impairment of functional categories in three closely related Ibero-Romance languages — Catalan, Galician, and Spanish — for which almost
Silvia Martinez-Ferreiro
doaj +1 more source
Linguistic Laws in Speech: The Case of Catalan and Spanish
Entropy, 2019 In this work we consider Glissando Corpus—an oral corpus of Catalan and Spanish—and empirically analyze the presence of the four classical linguistic laws (Zipf’s law, Herdan’s law, Brevity law, and Menzerath–Altmann’s law) in oral communication, and ...
A. Hernández-Fernández +3 more
semanticscholar +1 more source
Signature Catalan combinatorics [PDF]
Journal of Combinatorics, 2019 42 pages, 31 ...
Cesar Ceballos +1 more
openaire +4 more sources
The inverse of a triangular matrix and several identities of the Catalan numbers
Applicable Analysis and Discrete Mathematics, 2019 In the paper, the authors establish two identities to express higher order derivatives and integer powers of the generating function of the Chebyshev polynomials of the second kind in terms of integer powers and higher order derivatives of the generating
Feng Qi (祁锋) +2 more
semanticscholar +1 more source
Gate‐Tunable Hole Transport in In‐Plane Ge Nanowires by V‐Groove Confined Selective Epitaxy
Advanced Functional Materials, EarlyView.Ge nanowires are promising for hole spin‐based quantum processors, requiring direct integration onto Si wafers. This work introduces V‐groove‐confined selective epitaxy for in‐plane nanowire growth on Si. Structural and low‐temperature transport measurements confirm their high crystalline quality, gate‐tunable hole densities, and mobility.
Santhanu Panikar Ramanandan +11 more
wiley +1 more source
As unidades fraseolóxicas no castelán de Cataluña. Revisión dunha norma constituínte a partir da perspectiva histórica [PDF]
Cadernos de Fraseoloxía Galega, 2009 A constitución dun repertorio autónomo e estable de expresións fixas usado en particular na comunidade lingüística de Cataluña é un aspecto pouco investigado.
Jenny Brumme
doaj
Engineering a Spin‐Orbit Bandgap in Graphene‐Tellurium Heterostructures
Advanced Functional Materials, EarlyView.Tellurium intercalation in epitaxial graphene on Ir(111) enables the emergence of a spin–orbit‐induced bandgap with energy spin splitting. By combining STM, ARPES, spin‐resolved ARPES, and DFT, two structural phases are identified, both exhibiting tunable electronic doping.
Beatriz Muñiz Cano +14 more
wiley +1 more source