We introduce a stochastic fractional calculus. As an application, we present a stochastic fractional calculus of variations, which generalizes the fractional calculus of variations to stochastic processes. A stochasti...
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This study aims to analyze and understand the behavior of the Portuguese population in relation to parking and circulation in public places. As a methodology, we used an online questionnaire, due to time and budget co...
This study aims to analyze and understand the behavior of the Portuguese population in relation to parking and circulation in public places. As a methodology, we used an online questionnaire, due to time and budget constraints, which was shared on social networks such as Facebook, Instagram or LinkedIn, obtaining 203 valid responses. We verified through this society that we have a sensitive and studied society with people with disabilities, however, the concern with parking, as architectural barriers and access without physical barriers, the concern with the disabled and their care.
We construct and explore the solution space of two non-spinning, mini-boson stars in equilibrium, in fully non-linear General Relativity (GR), minimally coupled to a free, massive, complex scalar field. The equilibriu...
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If G is a transitive group of degree n having a string C-group of rank r ≥ (n + 3)/2, then G is necessarily the symmetric group Sn. We prove that if n is large enough, up to isomorphism and duality, the number of str...
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作者：
Mendes, A.R.Xambre, A.R.Alvelos, H.Department of Economics
Management Industrial Engineering and Tourism University of Aveiro Aveiro3810-193 Portugal Department of Economics
Management Industrial Engineering and Tourism Center for Research and Development in Mathematics and Applications University of Aveiro Aveiro3810-193 Portugal
Purpose - This work aims to study the management of products' and process' characteristics to ensure the products' quality, by leveraging the use of dashboards, that collect, analyse and display informatio...
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In this paper we present the groundwork for an Itô/Malliavin stochastic calculus and Hida's white noise analysis in the context of a supersymmentry with Z3-graded algebras. To this end we establish a ternary ...
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Marketing is an area that has always been updated over time, considering it fundamental to adapt to the changes and evolution of the market and consumers. Consequently, the enlargement of marketing to new areas has be...
Marketing is an area that has always been updated over time, considering it fundamental to adapt to the changes and evolution of the market and consumers. Consequently, the enlargement of marketing to new areas has been a growing reality. Based on this reality and within the scope of Religious Marketing, a study was carried out for the Parish of Poiares, in Portugal. The general objective was to characterize the profile of the parishioners, with the intention of subsequently defining strategies and implementing religious marketing tactics in the context of the parish of Poiares. To this end, an empirical work of qualitative nature was carried out, through the application of a questionnaire survey to a non-probabilistic convenience sample of 120 individuals. This empirical work had as its main objectives to understand the level of spirituality/involvement of the parishioners and the factors that register their greater or lesser satisfaction.
A convolutional code C over Zpr[D] is a Zpr[D]-submodule of Znpr[D] where Zpr[D] stands for the ring of polynomials with coefficients in Zpr. In this paper we study the list decoding problem of these codes when the tr...
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The term Stone-type duality often refers to a dual equivalence between a category of lattices or other partially ordered structures on one side and a category of topological structures on the other. This paper is part...
We investigate quasitopological black holes in (2+1) dimensions in the context of electromagnetic-generalized-quasitopological gravities (EM-GQT). For three different families of geometries of quasitopological nature,...
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We investigate quasitopological black holes in (2+1) dimensions in the context of electromagnetic-generalized-quasitopological gravities (EM-GQT). For three different families of geometries of quasitopological nature, we study the causal structure and their response to a probe scalar field. To linear order, we verify that the scalar field evolves stably, decaying in different towers of quasinormal modes. The studied black holes are either charged geometries (regular and singular) or a regular Bañados-Teitelboim-Zanelli (BTZ)-like black hole, both coming from the EM-GQT theory characterized by nonminimal coupling parameters between gravity and a background scalar field. We calculate the quasinormal modes applying different numerical methods with convergent results between them. The oscillations demonstrate a very peculiar structure for charged black holes: in the intermediate and near extremal cases, a particular scaling arises, similar to that of the rotating BTZ geometry, with the modes being proportional to the distance between horizons. For the single horizon black hole solution, we identify the presence of different quasinormal families by analyzing the features of that spectrum. In all three considered geometries, no instabilities were found.
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