Zobrazeno 1 - 10
of 466
pro vyhledávání: '"Fernandez, Marisa"'
We construct new examples of non-formal simply connected compact Sasaki-Einstein 7-manifolds. We determine the minimal model of the total space of any fibre bundle over $CP^2$ with fibre $S^1\times S^2$ or $S^3/Z_p$ ($p>0$), and we apply this to conc
Externí odkaz:
http://arxiv.org/abs/2208.13046
Autor:
Bosch-Nicolau, Pau, Fernández, Marisa L, Sulleiro, Elena, Villar, Juan Carlos, Perez-Molina, José A, Correa-Oliveira, Rodrigo, Sosa-Estani, Sergio, Sánchez-Montalvá, Adrián, del Carmen Bangher, Maria, Moreira, Otacilio C, Salvador, Fernando, Mota Ferreira, Ariela, Eloi-Santos, Silvana Maria, Serre-Delcor, Núria, Ramírez, Juan Carlos, Silgado, Aroa, Oliveira, Inés, Martín, Oihane, Aznar, Maria Luisa, Ribeiro, Antonio Luiz P, Almeida, Paulo Emilio Clementino, Chamorro-Tojeiro, Sandra, Espinosa-Pereiro, Juan, de Paula, Alfredo Mauricio Batista, Váquiro-Herrera, Eliana, Tur, Carmen, Molina, Israel *
Publikováno v:
In The Lancet Infectious Diseases April 2024 24(4):386-394
We answer in the affirmative the question posed by Conti and Rossi on the existence of nilpotent Lie algebras of dimension 7 with an Einstein pseudo-metric of nonzero scalar curvature. Indeed, we construct a left-invariant pseudo-Riemannian metric $g
Externí odkaz:
http://arxiv.org/abs/2007.13398
Autor:
Sarratea, Maria B., Alberti, Andrés Sánchez, Redolfi, Daniela M., Truant, Sofía Noli, Iannantuono Lopez, Laura V., Bivona, Augusto E., Mariuzza, Roy A., Fernández, Marisa M., Malchiodi, Emilio L.
Publikováno v:
In BBA - General Subjects December 2023 1867(12)
Akademický článek
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El claro del bosque es el espacio filosófico abierto por la Fundación Canis Majoris en colaboración con la Cátedra Internacional de Investigación en Hermenéutica Crítica: HERCRITIA-UNED-Santander. La presente obra reúne los escritos basados e
Autor:
Gulisano, Luciana María, Ianiro Swiderski, Joaquín José, Fernández, Marisa Liliana, Giuliano, Juan Franco, Fernández Stepa, Ana Laura, Dominguez, Cecilia, Nahoum, Nicolás, Jourdan, Johana, Trombetta, Luis Ángel, García, Julián Luis
Publikováno v:
In Travel Medicine and Infectious Disease July-August 2023 54
We consider seven-dimensional unimodular Lie algebras $\mathfrak{g}$ admitting exact $G_2$-structures, focusing our attention on those with vanishing third Betti number $b_3(\mathfrak{g})$. We discuss some examples, both in the case when $b_2(\mathfr
Externí odkaz:
http://arxiv.org/abs/1904.11066
We review results about $G_2$-structures in relation to the existence of special metrics, such as Einstein metrics and Ricci solitons, and the evolution under the Laplacian flow on non-compact homogeneous spaces. We also discuss some examples in deta
Externí odkaz:
http://arxiv.org/abs/1810.07587
Publikováno v:
Adv. Math. 381 (2021)
We construct a compact formal 7-manifold with a closed $G_2$-structure and with first Betti number $b_1=1$, which does not admit any torsion-free $G_2$-structure, that is, it does not admit any $G_2$-structure such that the holonomy group of the asso
Externí odkaz:
http://arxiv.org/abs/1808.07144