Search results for "46"

Noticia de las funciones, y regocijos, que se han executado en la Villa, y Corte de Madrid à la feliz entrada que ha hecho el dia 10. de octubre nues…

Títol pres d'inici de text Peu d'impremta pres del colofó Precedeix al títol: [Creu de Malta L'any 1746 és el de l'esdeveniment, segons consta a l'índex ms Caplletra ornada al començament del text i vinyeta al final

'Entrepreneurial, institutional and financial strategies for FinTech profitability'

2022

The authors acknowledge the financial support from the FUNCAS Foundation, PGC2018 -099415 -B -100 MICINN/FEDER/UE, and Junta de Andalucia P18-RT-3571 Project.

Indigent consumers’ protection at the financial services market

2016

Opracowanie stanowi próbę odpowiedzi na pytanie, czy ochrona osób niezamożnych na rynku usług finansowych powinna być realizowana odrębnie w stosunku do powszechnie obowiązujących zasad oraz jakie elementy powinna obejmować ta ochrona? Ponadto – jakie podmioty powinny jej udzielać – czy te, które już istnieją na rynku, czy inne, nowe? Problem ochrony osób niezamożnych wynika stąd, że w dużej mierze osoby te są wykluczone z rynku podstawowego (mainstream market), objętego ochroną prawną. Część osób korzysta z oferty rynku alternatywnego, czy wręcz nieformalnego. Wydaje się więc, że dodatkowa ochrona osób niezamożnych powinna być ukierunkowana na te właśnie obszary rynku usług finansowych. Th…

Poincaré inequalities and Steiner symmetrization

1996

A complete geometric characterization for a general Steiner symmetric domain Ω ⊂ Rn to satisfy the Poincare inequality with exponent p > n−1 is obtained and it is shown that this range of exponents is best possible. In the case where the Steiner symmetric domain is determined by revolving the graph of a Lipschitz continuous function, it is shown that the preceding characterization works for all p > 1 and furthermore for such domains a geometric characterization for a more general Sobolev–Poincare inequality to hold is given. Although the operation of Steiner symmetrization need not always preserve a Poincare inequality, a general class of domains is given for which Poincare inequalities are…

Incentives in Corporate Governance: The Role of Self-Regulation

2004

Corporate governance stems from the interplay of legal norms, security regulation, self-regulation and best practices. Recent scandals and frauds have forced governments to update laws on corporate governance: the legislation process has been very fast in some countries, others have lagged. Law and regulation intervene and become effective only ex-post, when damages have been done and malpractice is self-evident. On the contrary, self-regulation is a quicker and more flexible response to changing market conditions and of great impact on the relationship between firms and their environment. A self-regulatory organization (SRO) such as the stock exchange could administer the screening device,…

Vicente Lleó Balbastre y el género sicalíptico

2016

Gozos al glorioso San Fulgencio, Obispo de Ruspa, Doctor de la Iglesia, del Orden del Gran Padre San Agustin.

El full orlat Grav. xil. enmarcat del sant, flanquejat per gerros amb flors El text del goig a tres col. separades per filets

Fundamental isomorphism theorems for quantum groups

2017

The lattice of subgroups of a group is the subject of numerous results revolving around the central theme of decomposing the group into "chunks" (subquotients) that can then be compared to one another in various ways. Examples of results in this class would be the Noether isomorphism theorems, Zassenhaus' butterfly lemma, the Schreier refinement theorem for subnormal series of subgroups, the Dedekind modularity law, and last but not least the Jordan-H\"older theorem. We discuss analogues of the above-mentioned results in the context of locally compact quantum groups and linearly reductive quantum groups. The nature of the two cases is different: the former is operator algebraic and the latt…

Circular law for sparse random regular digraphs

2020

Fix a constant $C\geq 1$ and let $d=d(n)$ satisfy $d\leq \ln^{C} n$ for every large integer $n$. Denote by $A_n$ the adjacency matrix of a uniform random directed $d$-regular graph on $n$ vertices. We show that, as long as $d\to\infty$ with $n$, the empirical spectral distribution of appropriately rescaled matrix $A_n$ converges weakly in probability to the circular law. This result, together with an earlier work of Cook, completely settles the problem of weak convergence of the empirical distribution in directed $d$-regular setting with the degree tending to infinity. As a crucial element of our proof, we develop a technique of bounding intermediate singular values of $A_n$ based on studyi…

Non-hermitian operator modelling of basic cancer cell dynamics

2018

We propose a dynamical system of tumor cells proliferation based on operatorial methods. The approach we propose is quantum-like: we use ladder and number operators to describe healthy and tumor cells birth and death, and the evolution is ruled by a non-hermitian Hamiltonian which includes, in a non reversible way, the basic biological mechanisms we consider for the system. We show that this approach is rather efficient in describing some processes of the cells. We further add some medical treatment, described by adding a suitable term in the Hamiltonian, which controls and limits the growth of tumor cells, and we propose an optimal approach to stop, and reverse, this growth.