Results 21 to 30 of about 11,604,669 (184)
The umbral symbolic method for supersymmetric tensors
The problem of finding a unified and effective symbolic method for both symmetric and skew-symmetric tensors remained unsolved until the publication of \textit{F. D. Grosshans}, \textit{G.-C. Rota} and \textit{J. A. Stein's} book [Invariant theory and superalgebras (1987; Zbl 0648.15020)].
Brini, Andrea +2 more
openaire +2 more sources
El objetivo de este estudio fue evaluar parámetros fisiológicos para comparar y correlacionar en función de la saturación de oxigeno muscular y hemoglobina total medida con espectroscopia de infrarrojo cercano no invasivo.
Aldo Alfonso Vasquez-Bonilla +5 more
doaj +1 more source
OBJETIVO: Estimar el ritmo reproductivo básico en un brote de varicela, aplicar el teorema umbral estocástico para estimar la probabilidad de la ocurrencia del brote e identificar medidas preventivas. MÉTODOS: El estudio fue realizado en una guardería de
Doracelly Hincapié Palacio +1 more
doaj +1 more source
The Umbral operator and the integration involving generalized Bessel-type functions
The main purpose of this paper is to introduce a class of new integrals involving generalized Bessel functions and generalized Struve functions by using operational method and umbral formalization of Ramanujan master theorem.
Nisar Kottakkaran Sooppy +3 more
doaj +1 more source
Stratified cost-utility analysis of total hip arthroplasty in displaced femoral neck fracture
Objective: To conduct a stratified cost-utility analysis of total versus partial hip arthroplasty as a function of clinical subtype. Method: All cases of this type of intervention were analysed between 2010 and 2016 in the Basque Health Service ...
Igor Larrañaga +5 more
doaj +1 more source
Umbral methods and operator ordering
By using methods of umbral nature, we discuss new rules concerning the operator ordering. We apply the technique of formal power series to take advantage from the wealth of properties of the exponential operators. The usefulness of the obtained results in quantum field theory is discussed.
Babusci, D., Dattoli, G.
openaire +2 more sources
Q-functions and distributions, operational and umbral methods
Silvia Licciardi
openaire +3 more sources
«Scrap for gold and gold for scrap»: Francisco Umbral and Baltasar Gracián [PDF]
RESUMEN: Se analiza la huella y la influencia de la prosa graciana en la obra de Umbral. Este último, a quien siempre gustó definirse como barroco, prefirió siempre a otros autores del siglo XVII (con Quevedo por encima de todos ellos).
Blanco Gómez, Emilio Francisco
core +1 more source
Selección de Píxel Semilla mediante Wavelets para Crecimiento por Regiones Difuso (Selection of Seed Pixel Through Wavelets for Fuzzy Region Growing) [PDF]
RESUMEN El análisis de masas y tumores en mamografía es un problema difícil porque los signos del cáncer pueden ser mínimos o estar superpuestos en el tejido. Las técnicas de procesamiento de imágenes pueden mejorar el diagnóstico reduciendo los costos.
Damián Valdés Santiago +2 more
doaj +3 more sources
A Two-Way Convolution of the Mittag-Leffler Function with Sheffer Polynomials
This article presents a two-way convolution of the Mittag-Leffler function with Sheffer polynomials via the umbral algebraic method, thereby introducing the Mittag-Leffler–Sheffer polynomials (MLSPs) and the Sheffer–Mittag-Leffler function (SMLF).
Waseem Ahmad Khan +5 more
doaj +1 more source

