Results 51 to 60 of about 1,534 (98)

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

Subexponentially increasing sums of partial quotients in continued fraction expansions

open access: yes, 2015
We investigate from a multifractal analysis point of view the increasing rate of the sums of partial quotients $S\_n(x)=\sum\_{j=1}^n a\_j(x)$, where $x=[a\_1(x), a\_2(x), \cdots ]$ is the continued fraction expansion of an irrational $x\in (0,1 ...
Liao, Lingmin, Rams, Michal
core   +2 more sources

On bivariate fractal interpolation for countable data and associated nonlinear fractal operator

open access: yesDemonstratio Mathematica
Fractal interpolation has been conventionally treated as a method to construct a univariate continuous function interpolating a given finite data set with the distinguishing property that the graph of the interpolating function is the attractor of a ...
Pandey Kshitij Kumar   +2 more
doaj   +1 more source

Multifractal analysis of some multiple ergodic averages for the systems with non-constant Lyapunov exponents [PDF]

open access: yes, 2012
We study certain multiple ergodic averages of an iterated functions system generated by two contractions on the unit interval. By using the dynamical coding ${0,1}^{\mathbb{N}}$ of the attractor, we compute the Hausdorff dimension of the set of points ...
Liao, Lingmin, Rams, Michal
core   +2 more sources

Products of Snowflaked Euclidean Lines Are Not Minimal for Looking Down

open access: yesAnalysis and Geometry in Metric Spaces, 2017
We show that products of snowflaked Euclidean lines are not minimal for looking down. This question was raised in Fractured fractals and broken dreams, Problem 11.17, by David and Semmes.
Joseph Matthieu, Rajala Tapio
doaj   +1 more source

Regularity results for p-Laplacians in pre-fractal domains

open access: yesAdvances in Nonlinear Analysis, 2018
We study obstacle problems involving p-Laplace-type operators in non-convex polygons. We establish regularity results in terms of weighted Sobolev spaces. As applications, we obtain estimates for the FEM approximation for obstacle problems in pre-fractal
Capitanelli Raffaela   +2 more
doaj   +1 more source

The strong maximum principle for Schrödinger operators on fractals

open access: yesDemonstratio Mathematica, 2019
We prove a strong maximum principle for Schrödinger operators defined on a class of postcritically finite fractal sets and their blowups without boundary.
Ionescu Marius V.   +2 more
doaj   +1 more source

IFSs consisting of generalized convex contractions

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper we introduce the concept of iterated function system consisting of generalized convex contractions. More precisely, given n ∈ ℕ*, an iterated function system consisting of generalized convex contractions on a complete metric space (X; d) is
Georgescu Flavian
doaj   +1 more source

Some Remarks on the Fractal Structure of Irrigation Balls

open access: yesAdvanced Nonlinear Studies, 2019
The paper is related to a conjecture by Pegon, Santambrogio and Xia concerning the dimension of the boundary of some sets which we are calling “irrigation balls”.
Devillanova Giuseppe, Solimini Sergio
doaj   +1 more source

On the fast Khintchine spectrum in continued fractions

open access: yes, 2012
For $x\in [0,1)$, let $x=[a_1(x), a_2(x),...]$ be its continued fraction expansion with partial quotients ${a_n(x), n\ge 1}$. Let $\psi : \mathbb{N} \rightarrow \mathbb{N}$ be a function with $\psi(n)/n\to \infty$ as $n\to \infty$. In this note, the fast
Ai-Hua, Fan   +3 more
core   +1 more source

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