Buscador de Tesis y publicaciones académicas

On the Mordell-Weil rank of certain CM abelian varieties over anticyclotomic towers

Haidong Li · Ruichen Xu

Let $K/\mathbb{Q}$ be an imaginary quadratic extension, and let $p$ be an odd prime. In this paper, we investigate the growth of Mordell-Weil ranks of CM abelian varieties associated with Hecke characters over $K$ of infinite type $(1, 0)$ along the $\mathbb{Z}_p$-anticyclotomic tower of $K$. Our results cover all deco...

On heights and diameters of ternary cyclotomic and inclusion-exclusion polynomials

Gennady Bachman

For the $n$th cyclotomic polynomial $Φ_n$, let $A(n)$ denote the greatest absolute value of its coefficients, its height, and let $D(n)$ denote the difference between its largest and smallest coefficients, its diameter. We show that for any odd prime $p$ and an integer $h$ in the range $1\le h\le(p+1)/2$, there are arb...

Validation of the Canadian Pediatric Triage and AcuityScale in the Emergency Department of a pediatrichospital in Argentina

Ana L, Fustiñana · Tomás, Giménez · Julia R, Echeveste · María P, Veiga · y 7 más

Introduction. Overcrowding in pediatric emergency departments (PEDs) affects the quality of care. Triage is a strategy for optimizing this situation. Although validated systems exist, few have been validated in Latin America. This study evaluates the validity of the CPTAS (Canadian Pediatric Triage and Acuity Scale), a...

Overdetermined elliptic problems on model Riemannian manifolds

Ó, João Marcos do · de Lima, Jaqueline · Santos, Márcio

We establish a rigidity theorem for annular sector-like domains in the setting of overdetermined elliptic problems on model Riemannian manifolds. Specifically, if such a domain admits a solution to the inhomogeneous Helmholtz equation satisfying both constant Dirichlet and constant Neumann boundary conditions, then the...

Boundary regularity for quasiminima of double-phase problems on metric spaces

Antonella Nastasi · Cintia Pacchiano Camacho

We give a sufficient condition for Hölder continuity at a boundary point for quasiminima of double-phase functionals of $p,q$-Laplace type, in the setting of metric measure spaces equipped with a doubling measure and supporting a Poincaré inequality. We use a variational approach based on De Giorgi-type conditions to g...

Non-uniform continuity for the MHD equations with only magnetic diffusion

Jiu, Quansen · Xie, Yaowei

In this paper, we prove the non-uniform continuity of the data-to-solution map for the incompressible magnetohydrodynamic (MHD) equations with only magnetic diffusion in Sobolev spaces $H^s(\mathbb{R}^d)$ for all $s>0$ and $d=2,3$. Our results are first studies on the non-uniform continuity of the data-to-solution map...

Supporting Structural Variants and Multi-Segment Transcript Data for Prostate Cancer and Chordoma

WANG, TINGYOU

On certain bilinear sums with modular square roots and applications

Stephan Baier

We extend bounds on additive energies of modular square roots by Dunn, Kerr, Shparlinski, Shkredov and Zaharescu and apply these results to obtain bounds on certain bilinear exponential sums with modular square roots. From here, we make partial progress on the large sieve for square moduli.

Association between pediatric counseling and after-school physical activity in children: A cross-sectionalstudy

Pablo G, Dei-Cas · Ignacio J, Dei-Cas

Introduction. Physical activity during childhood is essential for health; however, current recommendations are often not met. The effectiveness of pediatric advice in clinical practice is uncertain. Objective. To evaluate the association between pediatric advice and after-school physical activity in children, and to an...

Coupled supply and demand forecasting in platform accommodation markets

Harrison E. Katz

Tourism demand forecasting is methodologically mature, but it typically treats accommodation supply as fixed or exogenous. In platform-mediated short-term rentals, supply is elastic, decision-driven, and co-evolves with demand through pricing, information design, and interventions. I reframe the core issue as endogenou...