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Related papers: Analysis on disconnected sets

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Some aspects of analysis on disconnected open subsets of the plane with connected fractal boundary are discussed.

Classical Analysis and ODEs · Mathematics 2007-10-02 Stephen Semmes

We present various results on disconnected reductive groups, in particular about the characteristic 0 representation theory of such groups over finite fields.

Representation Theory · Mathematics 2020-11-23 F. Digne , J. Michel

Some aspects of Cauchy integrals on sets with dimension larger than 1 are briefly discussed.

Classical Analysis and ODEs · Mathematics 2007-09-04 Stephen Semmes

We isolate a class, say $\mathcal{A}$, of global real analytic functions such that, each global semi-analytic set defined by $\mathcal{A}$ has only finitely many connected components and each component is also a global semi-analytic set…

Algebraic Geometry · Mathematics 2012-09-19 Abdelhafed Elkhadiri

Although Clifford analysis is like complex analysis in many ways, there are obvious differences related to noncommutativity, and a few aspects of this are considered here.

Classical Analysis and ODEs · Mathematics 2007-09-17 Stephen Semmes

The focus here is on connected fractal sets with topological dimension 1 and a lot of topological activity, and their connections with analysis.

Classical Analysis and ODEs · Mathematics 2007-09-24 Stephen Semmes

In this article, we classify disconnected reductive groups over an algebraically closed field with a few caveats. Internal parts of our result are both a classification of finite groups and a classification of integral representations of a…

Representation Theory · Mathematics 2024-09-20 Dylan Johnston , Diego Martín Duro , Dmitriy Rumynin

We show that a fractal cube $F$ in $\mathbb R^3$ may have an uncountable set $Q$ of connected components $K_\alpha$ neither of which is contained in any plane, whereas the set $Q$ is a totally disconnected self-similar subset of the…

Metric Geometry · Mathematics 2020-02-10 Dmitry Drozdov , Andrei Tetenov

In this paper, we present an effective method to characterize completely when a disconnected fractal square has only finitely many connected components. Our method is to establish some graph structures on fractal squares to reveal the…

General Topology · Mathematics 2021-05-05 Jian-Ci Xiao

The concept of complementability is extended from bounded operators to densely defined operators on Hilbert spaces. By introducing appropriate projections and decomposition techniques, a framework is developed for analyzing…

Functional Analysis · Mathematics 2025-11-27 Sachin Manjunath Naik , P. Sam Johnson

Let $D$ be a connected component of a possibly disconnected reductive group $G$ over an algebraic closed field. We define a partition of $D$ into finitely many Strata each of which is a union of $G^0$-conjugacy classes of fixed dimension.…

Representation Theory · Mathematics 2020-09-29 G. Lusztig

We study quasi-semisimple elements of disconnected reductive algebraic groups over an algebraically closed field. We describe their centralizers, define isolated and quasi-isolated quasi-semisimple elements and classify their conjugacy…

Group Theory · Mathematics 2020-11-23 François Digne , Jean Michel

In this short note, we discuss the topology of Diophantine numbers, giving simple explicit examples of Diophantine isolated numbers (among those with same Diophantine constatnts), showing that, Diophantine sets are not always Cantor sets.…

Dynamical Systems · Mathematics 2024-02-02 Fernando Argentieri , Luigi Chierchia

These informal notes briefly discuss various aspects of Cantor sets.

Classical Analysis and ODEs · Mathematics 2007-05-23 Stephen Semmes

In this Phd. thesis, a structural analysis of construction schemes is developed. The importance of this study will be justified by constructing several distinct combinatorial objects which have been of great interest in mathematics. We then…

Logic · Mathematics 2024-06-10 Jorge Antonio Cruz Chapital

We consider the numerical evaluation of a class of double integrals with respect to a pair of self-similar measures over a self-similar fractal set (the attractor of an iterated function system), with a weakly singular integrand of…

Numerical Analysis · Mathematics 2023-09-07 Andrew Gibbs , David P. Hewett , Botond Major

We investigate some connectedness properties of the set of points K(f) where the iterates of an entire function f are bounded. In particular, we describe a class of transcendental entire functions for which an analogue of the…

Dynamical Systems · Mathematics 2015-06-11 John Osborne

Four constructions result from a desire to create enhancements to Cantor's infinite real set cardinality. Each continues to keep Cantor's cardinality formulation in place while providing new comparisons of arbitrary infinite sets. To…

General Mathematics · Mathematics 2026-04-24 William Johnston

The structure of groups for which certain sets of commutator subgroups are finite is investigated, with a particular focus on the relationship between these groups and those with finite derived subgroup.

Group Theory · Mathematics 2025-07-14 Rosa Cascella

Reachability analysis, in general, is a fundamental method that supports formally-correct synthesis, robust model predictive control, set-based observers, fault detection, invariant computation, and conformance checking, to name but a few.…

Systems and Control · Electrical Eng. & Systems 2020-11-17 Niklas Kochdumper , Bastian Schürmann , Matthias Althoff
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