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pro vyhledávání: '"Gonçalves, Daniel"'
In this paper, we investigate the existence of parameterized algorithms running in subexponential time for two fundamental cycle-hitting problems: Feedback Vertex Set (FVS) and Triangle Hitting (TH). We focus on the class of pseudo-disk graphs, which
Externí odkaz:
http://arxiv.org/abs/2410.23878
A local homeomorphism between open subsets of a locally compact Hausdorff space induces dynamical systems with a wide range of applications, including in C*-algebras. In this paper, we introduce the concepts of nonwandering and wandering sets for suc
Externí odkaz:
http://arxiv.org/abs/2410.08072
Autor:
Gonçalves, Daniel Resende, Moura Jr., José dos Reis Vieira de, Pereira, Paulo Elias Carneiro, Mendes, Marcos Vinícius Agapito, Diniz-Pinto, Henrique Senna
Publikováno v:
Comptes Rendus. Mécanique, Vol 349, Iss 2, Pp 225-240 (2021)
Some nondestructive techniques of the Structural Health Monitoring (SHM) have improved their analysis in the past decades. Among them, the electromechanical impedance-based SHM technique (EMI-SHM) has been tested in several fields and associated to d
Externí odkaz:
https://doaj.org/article/e1a2a66905a6429e98d0b56513906b82
A vishing attack is a form of social engineering where attackers use phone calls to deceive individuals into disclosing sensitive information, such as personal data, financial information, or security credentials. Attackers exploit the perceived urge
Externí odkaz:
http://arxiv.org/abs/2409.13793
Autor:
Casado, Yolanda Cabrera, Gonçalves, María Inez Cardoso, Gonçalves, Daniel, Barquero, Dolores Martín, González, Cándido Martín, Campos, Iván Ruiz
In this paper, we establish a connection between evolution algebras of dimension two and Hopf algebras, via the algebraic group of automorphisms of an evolution algebra. Initially, we describe the Hopf algebra associated with the automorphism group o
Externí odkaz:
http://arxiv.org/abs/2407.15769
Publikováno v:
Studying how social relationships affect peer assessment in an E-learning environment, Learning Environments Research, 2024/06/17
Peer assessment has been widely studied as a replacement for traditional evaluation, not only by reducing the professors' workload but mainly by benefiting students' engagement and learning. Although several works successfully validate its accuracy a
Externí odkaz:
http://arxiv.org/abs/2407.01077
In the $K_r$-Cover problem, given a graph $G$ and an integer $k$ one has to decide if there exists a set of at most $k$ vertices whose removal destroys all $r$-cliques of $G$. In this paper we give an algorithm for $K_r$-Cover that runs in subexponen
Externí odkaz:
http://arxiv.org/abs/2407.01465
Brooks' Theorem is a fundamental result on graph colouring, stating that the chromatic number of a graph is almost always upper bounded by its maximal degree. Lov\'asz showed that such a colouring may then be computed in linear time when it exists. M
Externí odkaz:
http://arxiv.org/abs/2405.05222
We prove the Effros-Hahn conjecture for groupoid algebras with coefficients in a sheaf, obtaining as a consequence a description of the ideals in skew inverse semigroup rings. We also use the description of the ideals to characterize when the groupoi
Externí odkaz:
http://arxiv.org/abs/2404.15139
Autor:
Casado, Yolanda Cabrera, Gonçalves, Maria Inez Cardoso, Gonçalves, Daniel, Barquero, Dolores Martín, González, Cándido Martín, Campos, Iván Ruiz
The leitmotiv of this paper is linking algebraic properties of an evolution algebra with combinatorial properties of the (possibly several) graphs that one can associate to the algebra. We link nondegeneracy, zero annihilator, absorption property, vo
Externí odkaz:
http://arxiv.org/abs/2404.08752