Zobrazeno 1 - 10
of 306
pro vyhledávání: '"Lázaro, O."'
Autor:
Díaz, Lázaro O. Rodríguez
We prove that under some extra hypothesis, given an \'etale endomorphism of a normal irreducible Noetherian and simply connected scheme, if the endomorphism is surjective then it is injective. The additional assumption concerns the possibility of con
Externí odkaz:
http://arxiv.org/abs/2409.12163
Autor:
Díaz, Lázaro O. Rodríguez
Motivated by a valuation theorem, recently obtained by Rangachev, we study the \'etale extensions $A\subset B$ of polynomial rings over an algebraically closed field of characteristic zero, such that the integral closure $\overline{A}$ is a primary $
Externí odkaz:
http://arxiv.org/abs/2403.02219
Autor:
Díaz, Lázaro O. Rodríguez
We apply Ohi's criterion for faithfully flatness of extensions of commutative rings to prove that any \'etale extension $k[Y_1, \ldots, Y_n]\subseteq k[X_1, \ldots, X_n]$ of polynomial rings (each in $n$ indeterminates) over a commutative ring $k$ is
Externí odkaz:
http://arxiv.org/abs/2205.01032
Autor:
Karthikeyan, Ganesan *, Peix, Amalia, Devasenapathy, Niveditha, Jimenez-Heffernan, Amelia, Haque, Saif-ul, Rodella, Carlo, Giubbini, Raffaele, Rosas, Erick Alexanderson, Ozkan, Elgin, Keng, Yung Jih Felix, Vitola, João, Sobic-Saranovic, Dragana, Soni, Manoj, López, Leonardo, Cabrera, Lázaro O., Camacho-Freire, Santiago, Manovel-Sanchez, Ana, Naeem, Hesham, Fatima, Shazia, Rinaldi, Roberto, Carvajal-Juarez, Isabel, Esenboga, Kerim, Dondi, Maurizio, Paez, Diana
Publikováno v:
In Journal of Nuclear Cardiology June 2023 30(3):1091-1102
Autor:
Díaz, Lázaro O. Rodríguez
By a theorem of Kirchhoff if the six sphere admits an almost complex structure then the seven sphere is parallelizable, more crucial, he exhibited an explicit global frame constructed out of the given almost complex structure. This result implicitly
Externí odkaz:
http://arxiv.org/abs/1804.05794
Autor:
Díaz, Lázaro O. Rodríguez
We prove that the family of non-linear $W$-algebras $SW(3/2,2)$ which are extensions of the $N=1$ superconformal algebra by a primary supercurrent of conformal weight $2$ can be realized as a quantum Hamiltonian reduction of the Lie superalgebra $osp
Externí odkaz:
http://arxiv.org/abs/1611.03487
Autor:
Díaz, Lázaro O. Rodríguez
We study the chiral de Rham complex (CDR) over a manifold $M$ with holonomy $\rm G_2$. We prove that the vertex algebra of global sections of the CDR associated to $M$ contains two commuting copies of the Shatashvili-Vafa $\rm G_2$ superconformal alg
Externí odkaz:
http://arxiv.org/abs/1606.09534
Publikováno v:
Revista Matem\'atica Iberoamericana 36 (6), 2020
The $7$-dimensional link $K$ of a weighted homogeneous hypersurface on the round $9$-sphere in $\mathbb{C}^5$ has a nontrivial null Sasakian structure which is contact Calabi-Yau, in many cases. It admits a canonical co-closed $\rm G_2$-structure $\v
Externí odkaz:
http://arxiv.org/abs/1606.09271
Publikováno v:
In Journal of Nuclear Cardiology June 2021 28(3):1055-1063
We obtain the superconformal algebra associated to a sigma model with target a manifold with $G_{2}$ holonomy, i.e., the Shatashvili-Vafa $G_{2}$ algebra as a quantum Hamiltonian reduction of the exceptional Lie superalgebra $D(2,1;\alpha)$ for $\alp
Externí odkaz:
http://arxiv.org/abs/1406.4808