Matemàtiques i Informàtica: Enviaments recents
Ara mostrant els elements 221-240 de 1007
Stability of syzygy bundles
We show that given integers $ N$, $ d$ and $ n$ such that $ {N\ge2}, (N,d,n)$ $ \ne(2,2,5)$, and $ {N+1\le n\le\tbinom{d+N}{N}}$, there is a family of $ n$ monomials in $ K\left[X_0,\ldots,X_N\right]$ of degree $ d$ such ...
Acceptability of a lifelogging wearable camera in older adults with mild cognitive impairment: a mixed-method study
Background The main objective of this research was to evaluate the acceptance of technology based on a wearable lifelogging camera in a sample of older adults diagnosed with mild cognitive impairment (MCI). Methods A ...
Kyle-Back's model with a random horizon
The continuous-time version of Kyle [(1985) Continuous auctions and insider trading, Econometrica53 (6), 1315-1335.] developed by Back [(1992) Insider trading in continuous time, The Review of Financial Studies5 (3), ...
On the topological index of irregular surfaces
We study the topological index of some irregular surfaces that we call generalized Lagrangian. We show that under certain hypotheses on the base locus of the Lagrangian system the topological index is non-negative. For the ...
In-vivo Measurement of Wrist Movements During the Dart-Throwing Motion Using Inertial Measurement Units
Background: This study investigates the dart-throwing motion (DTM) by comparing an inertial measurement unit-based system previously validated for basic motion tasks with an optoelectronic motion capture system. The DTM ...
Pointwise descriptions of nearly incompressible vector fields with bounded curl
Among those nearly incompressible vector fields $\mathbf{v}: \mathbb{R}^n \rightarrow \mathbb{R}^n$ with $|x| \log |x|$ growth at infinity, we give a pointwise characterization of the ones for which curl $\mathbf{v}=D ...
Contractive inequalitie for Bergman spaces and multiplicative Hankel forms.
Abstract. We consider sharp inequalities for Bergman spaces of the unit disc, establishing analogues of the inequality in Carleman's proof of the isoperimet- ric inequality and of Weissler's inequality for dilations. By ...
Sherali-Adams Relaxations and Indistinguishability in Counting Logics
Two graphs with adjacency matrices $\mathbf{A}$ and $\mathbf{B}$ are isomorphic if there exists a permutation matrix $\mathbf{P}$ for which the identity $\mathbf{P}^{\mathrm{T}} \mathbf{A} \mathbf{P} = \mathbf{B}$ holds. ...
Characterization of products of theta divisors
We study products of irreducible theta divisors from two points of view. Onthe one hand, we characterize them as normal subvarieties of abelian varieties such that adesingularization has holomorphic Euler characteristic ...
Neural Stochastic Differential Equations for conditional time series generation using the signature Wasserstein -1 metric
(Conditional) generative adversarial networks (GANs) have had great success in recent years, due to their ability to approximate (conditional) distributions over extremely high-dimensional spaces. However, they are highly ...
Strict density inequalities for sampling and interpolation in weighted spaces of holomorphic functions
Answering a question of Lindholm, we prove strict density inequalities for sampling and interpolation in Fock spaces of entire functions in several complex variables defined by a plurisubharmonic weight. In particular, ...
Invariant manifolds near $L_{1}$ and $L_{2}$ in the Quasi-bicircular Problem
The quasi-bicircular problem (QBCP) is a periodic time-dependent perturbation of the Earth– Moon restricted three-body problem (RTBP) that accounts for the effect of the Sun. It is based on using a periodic solution of ...
Equidistribution and $\beta$-ensembles
We find the precise rate at which the empirical measure associated to a $\beta$-ensemble converges to its limiting measure. In our setting the $\beta$-ensemble is a random point process on a compact complex manifold ...
From $H^\infty$ to $N$. Pointwise properties and algebraic structure in the Nevanlinna class
This survey shows how, for the Nevanlinna class $\mathcal{N}$ of the unit disc, one can define and often characterize the analogues of well-known objects and properties related to the algebra of bounded analytic functions ...
A Conversational Agent that Learns to be Aligned with the Moral Value of Respect"
Videogame developers typically conduct user experience surveys to gather feedback from users once they have played. Nevertheless, as users may not recall all the details once finished, we propose an ethical conversational ...
Generic vanishing index and the birationality of the bicanonical map of irregular varieties
We prove that any smooth complex projective variety with generic vanishingindex bigger or equal than 2 has birational bicanonical map. Therefore, if $X$ is a smoothcomplex projective variety $\varphi$ with maximal Albanese ...
Sheaves of E-infinity algebras and applications to algebraic varieties and singular spaces
ABSTRACT. We describe the $E$-infinity algebra structure on the complex of singular cochains of a topological space, in the context of sheaf theory. As a first application, for any algebraic variety we define a weight ...
Entorn de comunicació d’unitats d’informació social
Requeriments tècnics: PHP 5.3, MySQL amb motor d’emmagatzematge InnoDB, HTML5. Un dels autors ha sol·licitat romandre anònim
$2S_4 * Q_8$-extensions in characteristic 3
We present an explicit construction of the complete family of Galois extensions of a field $K$ of characteristic 3 with Galois group the central product $2S_4 * Q_8$ of a double cover $2S_4$ of the symmetric group $S_4$ ...
Lorentz-Shimogaki and Boyd theorems for weighted Lorentz spaces
We prove the Lorentz-Shimogaki and Boyd theorems for the spaces $\Lambda^{p}_{u}(w)$. As a consequence, we give the complete characterization of the strong boundedness of $H$ on these spaces in terms of some geometric ...
