Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Natalia Jonard-Pérez"'
Autor:
Xavier Blasco, Gilberto Reynoso-Meza, Enrique A. Sánchez-Pérez, Juan Vicente Sánchez-Pérez, Natalia Jonard-Pérez
Publikováno v:
Mathematics, Vol 9, Iss 9, p 991 (2021)
Including designer preferences in every phase of the resolution of a multi-objective optimization problem is a fundamental issue to achieve a good quality in the final solution. To consider preferences, the proposal of this paper is based on the defi
Externí odkaz:
https://doaj.org/article/100490d55bf7478da2a0a54ae4298fc6
Autor:
Natalia Jonard-Pérez, Victor Donjuán
Publikováno v:
Quaestiones Mathematicae. 43:467-491
In this paper, we approach the question if some of the separation axioms are equivalent in the class of asymmetric normed spaces. In particular, we make a remark on a known theorem which states that every $T_1$ asymmetric normed space with compact cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67c3f8ed05eb770f398a130b56ee9733
https://doi.org/10.2989/16073606.2019.1581298
https://doi.org/10.2989/16073606.2019.1581298
The classical Jordan curve theorem for digital curves asserts that the Jordan curve theorem remains valid in the Khalimsky plane. Since the Khalimsky plane is a quotient space of $\mathbb R^2$ induced by a tiling of squares, it is natural to ask for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afecab71b12580df8c67a72b21af3659
Autor:
Natalia Jonard-Pérez
In this note we prove a more general (and topological) version of Gr\"unbaum's conjecture about affine invariant points. As an application of our result we show that, if we consider the action of the group of similarities, Gr\"unbaum's conjecture rem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1256d7fec9ac0266ffd13032b585e1e
http://arxiv.org/abs/2006.14053
http://arxiv.org/abs/2006.14053
Publikováno v:
Quaestiones Mathematicae; Vol 41, No 4 (2018); 549-563
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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[EN] We characterize the ¿nite dimensional asymmetric normed spaces which are right bounded and the relation of this property with the natural compactness properties of the unit ball, such as compactness and strong compactness. In contrast with some
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ea8cbe64ec741738cdf47fdc17016c0
https://doi.org/10.2989/16073606.2017.1391351
https://doi.org/10.2989/16073606.2017.1391351
Publikováno v:
Journal of Mathematical Analysis and Applications. 439:725-736
Let G be a compact group acting on a Polish group X by means of automorphisms. It is proved that the orbit space X / G is an l 2 -manifold (resp., homeomorphic to l 2 ) provided X is a G-ANR (resp., G-AR) and the fixed point set X G is not locally co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0486440603d779357d8c37bc09ea3e8b
https://doi.org/10.1016/j.jmaa.2016.03.008
https://doi.org/10.1016/j.jmaa.2016.03.008
Autor:
M. Raja, Natalia Jonard-Pérez
Publikováno v:
Topology and its Applications. 204:149-156
Let K be an uncountable metric compact space. It is well known that C ( K ) is isometrically universal for the separable Banach spaces, but the continuous functions that compose the isometric image of finite dimensional spaces are typically far from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::117d69955959a1013996e2d53f1a7670
https://doi.org/10.1016/j.topol.2016.03.003
https://doi.org/10.1016/j.topol.2016.03.003
Autor:
Natalia Jonard-Pérez
Publikováno v:
Topology and its Applications. 204:240-245
Let us denote by K n the hyperspace of all convex bodies of R n equipped with the Hausdorff distance topology. An affine invariant point p is a continuous and Aff ( n ) -equivariant map p : K n → R n , where Aff ( n ) denotes the group of all nonsi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14e43151c74f959f3aedfc89226bb0c9
https://doi.org/10.1016/j.topol.2016.03.013
https://doi.org/10.1016/j.topol.2016.03.013
Publikováno v:
Journal of Mathematical Analysis and Applications. 412:613-619
A compact convex subset K of a topological linear space is called a Keller compactum if it is affinely homeomorphic to an infinite-dimensional compact convex subset of the Hilbert space l 2 . Let G be a compact topological group acting affinely on a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81418b5625aa513826c95177a0018df3
https://doi.org/10.1016/j.jmaa.2013.10.076
https://doi.org/10.1016/j.jmaa.2013.10.076
Publikováno v:
Fundamenta Mathematicae. 223:99-136
For every n ≥ 2, let cc(R) denote the hyperspace of all nonempty compact convex subsets of the Euclidean space R endowed with the Hausdorff metric topology. Let cb(R) be the subset of cc(R) consisting of all compact convex bodies. In this paper we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d25fa89a395011724de09a34f4cad03
https://doi.org/10.4064/fm223-2-1
https://doi.org/10.4064/fm223-2-1