Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Elismar R. Oliveira"'
Publikováno v:
The Electronic Journal of Combinatorics. 30
A graph is said to be $I$-eigenvalue free if it has no eigenvalues in the interval $I$ with respect to the adjacency matrix $A$. In this paper we present twoalgorithms for generating $I$-eigenvalue free threshold graphs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e441be68bfe47d43957ae9457cbad621
https://doi.org/10.37236/11225
https://doi.org/10.37236/11225
This paper introduces a theory of Thermodynamic Formalism for Iterated Function Systems with Measures (IFSm). We study the spectral properties of the Transfer and Markov operators associated to a IFSm. We introduce variational formulations for the to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21eb2690687ad2ed15154e268cebe58b
http://arxiv.org/abs/2211.04919
http://arxiv.org/abs/2211.04919
Publikováno v:
Numerical Algorithms. 86:223-256
We provide a new algorithm to generate images of the generalized fuzzy fractal attractors described in Oliveira-2017. We also provide some important results on the approximation of fractal operators to discrete subspaces with application to discrete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57cee8bfc56d912e42e34f8e0e55bd0a
https://doi.org/10.1007/s11075-020-00886-w
https://doi.org/10.1007/s11075-020-00886-w
We present algorithms to compute approximations of invariant measures and its attractors for IFS and GIFS, using the deterministic algorithm in a tractable way, with code optimization strategies and use of data structures and search algorithms. The r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::275f8802eac2be890eb155e9184e3b45
https://doi.org/10.21203/rs.3.rs-1000434/v1
https://doi.org/10.21203/rs.3.rs-1000434/v1
We prove that the idempotent Markov operator generated by contractive max plus normalized iterated function system (IFS) is also a contractive map w.r.t. natural metrics on the space of idempotent measures. This gives alternative proofs of the existe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84d7befc219b86937e6fe0e3dd19adc1
http://arxiv.org/abs/2109.13045
http://arxiv.org/abs/2109.13045
We provide a new approach to the Hutchinson-Barnsley theory for idempotent measures first presented in N. Mazurenko, M. Zarichnyi, Invariant idempotent measures, Carpathian Math. Publ., 10 (2018), 1, 172--178. The main feature developed here is a met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72d109837e3130e5949bd63ff9677736
http://arxiv.org/abs/2109.13040
http://arxiv.org/abs/2109.13040
Publikováno v:
Linear Algebra and its Applications. 575:250-272
Studying graphs by means of the largest eigenvalue of the adjacency matrix (the index) has been a problem largely investigated in Spectral Graph Theory. Here, we consider trees with index in the real interval (2,√(2+√5)) and their ordering with r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5bc94ee273fa97c0f13a582e5c2991c
https://doi.org/10.1016/j.laa.2019.04.012
https://doi.org/10.1016/j.laa.2019.04.012
Publikováno v:
Springer Proceedings in Mathematics & Statistics ISBN: 9783030781620
We describe a procedure based on the iteration of an initial function by an appropriated operator, acting on continuous functions, in order to get a fixed point. This fixed point will be a calibrated subaction for the doubling map on the circle and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d692e621b213b0c65790522b6b9e1fd6
https://doi.org/10.1007/978-3-030-78163-7_8
https://doi.org/10.1007/978-3-030-78163-7_8
Publikováno v:
Linear and Multilinear Algebra. 68:991-1000
We show that the ordering of starlike trees by spectral radii coincides with the shortlex ordering of nondecreasing sequences of their branch lengths.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa00ba2a0c613f55f8c9343ebb0ea9b8
https://doi.org/10.1080/03081087.2018.1524435
https://doi.org/10.1080/03081087.2018.1524435
Autor:
Elismar R. Oliveira, Filip Strobin
Publikováno v:
Fuzzy Sets and Systems. 331:131-156
Cabrelli, Forte, Molter and Vrscay in 1992 considered a {fuzzy} version of the theory of iterated function systems (IFSs in short) and their fractals%The idea was to extend the classical Hutchinson-Barnsley operator to selfmaps of a metric space to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1114fbb58e296a21582bb612dbd0d2c
https://doi.org/10.1016/j.fss.2017.05.003
https://doi.org/10.1016/j.fss.2017.05.003