Results 91 to 100 of about 2,932 (231)

Leray-Schauder results for multivalued nonlinear contractions defined on closed subsets of a Fréchet space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
New Leray-Schauder results are presented for multivalued contractions defined on subsets of a Fréchet space E. The proof relies on fixed point results in Banach spaces and on viewing E as the projective limit of a sequence of Banach spaces.
Ravi P. Agarwal, Donal O'Regan
doaj   +1 more source

Multivariate and abstract approximation theory for Banach space valued functions

open access: yesDemonstratio Mathematica, 2017
Here we study quantitatively the high degree of approximation of sequences of linear operators acting on Banach space valued Fréchet differentiable functions to the unit operator, as well as other basic approximations including those under convexity ...
Anastassiou George A.
doaj   +1 more source

Labor Market Monopsony Power and the Dynamic Gains to Openness Reforms

open access: yesInternational Economic Review, EarlyView.
ABSTRACT We embed labor market monopsony into a dynamic heterogeneous‐firm general equilibrium model with exporting, horizontal FDI, and rich firm lifecycle dynamics. Rising marginal costs with monopsony slow and limit incumbent firm growth in response to liberalization, shifting adjustment to the extensive margin.
Priyaranjan Jha   +2 more
wiley   +1 more source

On Metric Choice in Dimension Reduction for Fréchet Regression

open access: yesInternational Statistical Review, EarlyView.
Summary Fréchet regression is becoming a mainstay in modern data analysis for analysing non‐traditional data types belonging to general metric spaces. This novel regression method is especially useful in the analysis of complex health data such as continuous monitoring and imaging data.
Abdul‐Nasah Soale   +3 more
wiley   +1 more source

WEAKLY COMPACTLY GENERATED FRECHET SPACES

open access: yes, 2014
. It is proved that a weakly compact generated Frechet space is LindelBf in the weak topology. As a corollary it is proved that for a finite measure space every weakly measurable function into a weakly compactly gener-ated Frechet space is weakly equ ...
Surjit Singh Khurana
core  

Homological techniques in Frechet algebras and in particular in Frechet locally C* - algebras

open access: yes, 2009
In this thesis, we generalize a characterization of strictly flat cyclic Banach modules over Banach algebras, due to Helemskii and Sheinberg, in the context of Frechet (locally convex) algebras.
Podara, Christina   +1 more
core   +1 more source

A Conditional Tail Expectation Type Risk Measure for Time Series

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We consider the estimation of the conditional expectation 𝔼(Xh|X0>UX(1/p)), provided 𝔼|X0|<∞, at extreme levels, where (Xt)t∈ℤ$$ {\left({X}_t\right)}_{t\in \mathbb{Z}} $$ is a strictly stationary time series, UX$$ {U}_X $$ its tail quantile function, h$$ h $$ is a positive integer and p∈(0,1)$$ p\in \left(0,1\right) $$ is such that p→0$$ p\to ...
Yuri Goegebeur   +2 more
wiley   +1 more source

Closed spectral measures in Fréchet spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Closed spectral measures, which are often used in the theory of operators, have the desirable property that their L1-space is complete. In this note criteria are given which assure the closedness of spectral measures acting in Fréchet spaces.
W. Ricker
doaj   +1 more source

A Note on Frechet-Montel Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1990
Let E be a Frechet space and let Cb(E) denote the vector space of all bounded continuous functions on E. It is shown that the following statements are equivalent: (i) E is Montel. (ii) Every bounded continuous function from E into c0 maps every absolutely convex closed bounded subset of E into a relatively compact subset c0 . (iii) Every sequence in Cb(
openaire   +1 more source

Density‐Valued ARMA Models by Spline Mixtures

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT This paper proposes a novel framework for modeling time series of probability density functions by extending autoregressive moving average (ARMA) models to density‐valued data. The method is based on a transformation approach, wherein each density function on a compact domain [0,1]d$$ {\left[0,1\right]}^d $$ is approximated by a B‐spline ...
Yasumasa Matsuda, Rei Iwafuchi
wiley   +1 more source

Home - About - Disclaimer - Privacy