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pro vyhledávání: '"Bermudo Navarrete, Sergio"'
Autor:
Bermudo Navarrete, Sergio
Publikováno v:
Mediterranean Journal of Mathematics (2023) 20:42
Let G be a graph with vertex set V and edge set E, a set D V is a total dominating set if every vertex v V has at least one neighbor in D. The minimum cardinality among all total dominating sets is called the total domination number, and it is denote
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a436cc16a7c5763f0fc6559c231ac2b
https://doi.org/10.1007/s00009-022-02236-7
https://doi.org/10.1007/s00009-022-02236-7
Autor:
Bermudo Navarrete, Sergio
Publikováno v:
Discrete Mathematics, Volume 346, Issue 1, 2023, 113172
Given a graph G with vertex set and edge set , the geometric-arithmetic index is the value where and denote the degrees of the vertices , respectively. In this work we present an upper bound for the geometric-arithmetic index of trees in terms of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f9c9c4624e24f22a34c4c2140a6145e
https://doi.org/10.1016/j.disc.2022.113172
https://doi.org/10.1016/j.disc.2022.113172
Publikováno v:
Redined, Red de Información Educativa
Ministerio de Educación, Cultura y Deporte (MECD)
Ministerio de Educación, Cultura y Deporte (MECD)
Título, resumen y palabras clave en español e inglés Resumen basado en el de la publicación Se presenta un estudio estadístico descriptivo de los resultados que el alumnado en el Grado de Ingeniería Informática de la Universidad Pablo de Olavi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=RECOLECTA___::9be3bbd95e849080fed468c883efff3f
https://hdl.handle.net/11162/209176
https://hdl.handle.net/11162/209176
Autor:
Bermudo Navarrete, Sergio, Hernández Mancera, Carmen, Paúl Escolano, Pedro José, Vasyunin, Vasily
Publikováno v:
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
instname
LetT1:H1→H1be a completely non-unitary contraction having a 2×2 singular characteristic function Θ1; thatis, Θ1=[θi,j]i, j=1,2withθij∈H∞and det(Θ1)=0. Asit is well known, Θ1is a singular matrix if and only ifΘ1can be written asΘ1=w1m1[
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::88d51590f73aa846852e250f369579a7
Autor:
Bermudo Navarrete, Sergio
Publikováno v:
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
instname
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d2a23167664361ada4779840ec0ef6dc
https://idus.us.es/xmlui/handle/11441/15909
https://idus.us.es/xmlui/handle/11441/15909
Publikováno v:
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
instname
A Toeplitz operator with respect to a contractive representation {Ts} of an abelian semigroup Σ in a Hilbert space H is an operator X ∈ B(H) such that X = TsXT ∗ s for all s ∈ Σ. We show that if {Ts} has a minimal isometric dilation {Us} ⊂
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d1c101d9ece585d5e895798e0fe5d5b0