Zobrazeno 1 - 10
of 5 843
pro vyhledávání: '"Rodriguez Miguel"'
Autor:
del Villar, América Molina
Publikováno v:
Historia Mexicana, 2023 Apr 01. 724 (288), 1965-1971.
Externí odkaz:
https://www.jstor.org/stable/27202850
Autor:
Rodriguez, Miguel Orbegozo
In this short note, we give examples of binding sums of contact 3-manifolds that do not preserve properties such as tightness or symplectic fillability. We also prove vanishing of the Heegaard Floer contact invariant for an infinite family of binding
Externí odkaz:
http://arxiv.org/abs/2409.05612
We show that closures of homogeneous braids are visually prime, addressing a question of Cromwell. The key technical tool for the proof is the following criterion concerning primeness of open books, which we consider to be of independent interest. Fo
Externí odkaz:
http://arxiv.org/abs/2408.15730
We develop an approach analogous to classical Frobenius theory for the analysis of singularities of ODEs in the case of discrete dynamical systems. Our methodology is based on the Roman-Rota theory of finite operators and relies crucially on the idea
Externí odkaz:
http://arxiv.org/abs/2407.11602
We consider various classes of bounded operators on the Fock space $F^2$ of Gaussian square integrable entire functions over the complex plane. These include Toeplitz (type) operators, weighted composition operators, singular integral operators, Volt
Externí odkaz:
http://arxiv.org/abs/2405.20792
Monolithic 3YTZP and 3YTZP containing 2.5 vol.% of single-walled carbon nanotubes (SWCNT) were fabricated by Spark Plasma Sintering (SPS) at 1250 C. Microstructural characterization of the as-fabricated 3YTZP/SWCNTs composite shows a homogeneous CNTs
Externí odkaz:
http://arxiv.org/abs/2402.06651
Effects on mechanical properties of the presence of either single-walled carbon nanotubes (SWCNTs) or multi-walled carbon nanotubes (MWCNTs) in a 3YTZP matrix have been investigated in this work. Thus, monolithic 3YTZP and 3YTZP containing 2.5 vol% e
Externí odkaz:
http://arxiv.org/abs/2402.08130
Samples of $\alpha$-SiC have been sintered with liquid phase (LPS) to 1950 $^\circ$C, in atmosphere of argon and processing times between 1 and 7 hours. Using scanning electron microscopy (SEM) the microstructure of the samples has been characterized
Externí odkaz:
http://arxiv.org/abs/2402.02466
Autor:
Rodríguez, Miguel Castillo, Bernabé, Antonio Muñoz, Castaing, Jacques, Veyssière, Patrick, Rodríguez, Arturo Domínguez
The plastic deformation of Cr3+ -doped a-Al2 O3 (ruby) with four distinct Cr concentrations has been studied at temperatures between 900 and 1500 $^\circ$C. The mechanical tests indicate that the processes of dislocation multiplication and the adjust
Externí odkaz:
http://arxiv.org/abs/2402.02443
The influence that the atmosphere (N_2 or Ar) and sintering time have on microstructure evolution in liquid-phase-sintered alpha-sic and on its mechanical properties at high temperature was investigated. The microstructure of the samples sintered in
Externí odkaz:
http://arxiv.org/abs/2402.02436