Results 111 to 120 of about 9,562 (223)

Nested Archimedean Copulas Meet R: The nacopula Package

open access: yes
The package nacopula provides procedures for constructing nested Archimedean copulas in any dimensions and with any kind of nesting structure, generating vectors of random variates from the constructed objects, computing function values and probabilities
Marius Hofert, Martin Maechler
core  

Strict topoligies in non-Archimedean function spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Let F be a non-trivial complete non-Archimedean valued field. Some locally F-convex topologies, on the space Cb(X,E) of all bounded continuous functions from a zero-dimensional topological space X to a non-Archimedean locally F-convex space E, are ...
A. K. Katsaras
doaj   +1 more source

On bivariate Archimedean copulas with fractal support

open access: yesDependence Modeling
Due to their simple analytic form (bivariate) Archimedean copulas are usually viewed as very smooth and handy objects, which should distribute mass in a fairly regular and certainly not in a pathological way. Building upon recently established results on
Sánchez Juan Fernández   +1 more
doaj   +1 more source

A multivariate version of Williamson’s theorem, ℓ1-symmetric survival functions, and generalized Archimedean copulas

open access: yesDependence Modeling, 2018
Williamson’s integral representation of n-monotone functions on the half-line is generalized to several dimensions. This leads to a characterization of multivariate survival functions with multiply ℓ1- symmetry.
Ressel Paul
doaj   +1 more source

Archimedean Copulas

open access: yes, 2010
In the area of financial risk assessment and actuarial calculation it is important to know the probability for two or more risks to occur at the same time.
Oelker, Aenne
core  

Beyond Archimedean Space-Time Structure

open access: yes, 2011
It took two millennia after Euclid and until in the early 1880s, when we went beyond the ancient axiom of parallels, and inaugurated geometries of curved spaces. In less than one more century, General Relativity followed. At present, physical thinking is
Rosinger, Elmer,   +3 more
core   +1 more source

On the Archimedean or semiregular polyhedra

open access: yesElemente der Mathematik, 2008
We prove that there are thirteen Archimedean/semiregular polyhedra by using Euler's polyhedral formula.
openaire   +3 more sources

Archimedean Copulas and Temporal Dependence [PDF]

open access: yes, 2010
We study the dependence properties of stationary Markov chains generated by Archimedean copulas. Under some simple regularity conditions, we show that regular variation of the Archimedean generator at zero and one implies geometric orgodicityof the ...
Beare, Brendan K.
core  

Distributive lattices of t-k-Archimedean semirings

open access: yes, 2011
A semiring S in ⁺ is a t-k-Archimedean semiring if for all a,b ∈ S, b ∈ √(Sa) ∩ √(aS). Here we introduce the t-k-Archimedean semirings and characterize the semirings which are distributive lattice (chain) of t-k-Archimedean semirings.
Mondal, Tapas
core   +1 more source

A remark on stationary fuzzy metric spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2011
The main result states that the category of stationary fuzzymetric spaces (with respect to an archimedean $t$-norm) andnonexpanding maps is isomorphic to a full subcategory of thecategory of metric spaces and nonexpanding maps.
A. Savchenko
doaj  

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