activity
20172026
most citedTopological entropy of closed sets in

18 citations · 30 across the 17 of their papers we have counts for

collaborators

17 papers

math.DS2026

The Specification Property on the Lelek Fan

Goran Erceg, James Kelly, Judy Kennedy +2

Recent work of Piotr Oprocha and his collaborators has provided a number of delicate examples of dynamical systems separating specification, shadowing, and periodic-point density,…

math.GN2025

Retract or Not: A Tale of Two Fans

Iztok Banic, Goran Erceg, Sina Greenwood +1

Let be a Lelek fan or a Cantor fan and let be a Lelek fan or a Cantor fan. In this paper, we study embeddings that admit retractions from onto .…

math.DS2025

Specification in Mahavier Systems via Closed Relations

Iztok Banič, Goran Erceg, Ivan Jelić +1

We study two fundamental properties of topological dynamical systems, the specification property and the initial specification property, and explore their generalizations to the br…

math.DS2025

Lelek-like Fans: Endpoint-dense Continua Supporting Topologically Mixing Maps

Iztok Banic, Goran Erceg, Ivan Jelic +1

The Lelek fan is the only smooth fan that has a dense set of end-points. In this paper, we study non-smooth fans with this property; i.e., we construct an uncountable family of pai…

math.DS2023★ 1 cited

Chaos and mixing homeomorphisms on fans

Iztok Banic, Goran Erceg, Judy Kennedy +2

We construct a mixing homeomorphism on the Lelek fan. We also construct a mixing homeomorphism on the Cantor fan. Then, we construct a family of uncountably many pairwise non-homeo…

math.DS2023★ 2 cited

Quotients of dynamical systems and chaos on the Cantor fan

Iztok Banic, Goran Erceg, Judy Kennedy +1

Let be a dynamical system. Using an equivalence relation on , we introduce the quotient of the dynamical system . In the first part…

math.DS2023★ 1 cited

An uncountable family of smooth fans that admit transitive homeomorphisms

Iztok Banic, Goran Erceg, Judy Kennedy +2

We construct a family of uncountably many pairwise non-homeomorphic smooth fans that admit transitive homeomorphisms. In addition, we show that the star of Cantor fans admits a tra…

math.GN2023★ 1 cited

An embedding of the Cantor fan into the Lelek fan

Iztok Banič, Goran Erceg, Judy Kennedy

The Lelek fan is usually constructed as a subcontinuum of the Cantor fan in such a way that the set of the end-points of is dense in . It easily follows that the Lelek f…

math.DS2023★ 2 cited

Transitive mappings on the Cantor fan

Iztok Banič, Goran Erceg, Judy Kennedy +2

Many continua that admit a transitive homeomorphism may be found in the literature. The circle is probably the simplest non-degenerate continuum that admits such a homeomorphism. O…

math.DS2022

A transitive homeomorphism on the Lelek fan

Iztok Banič, Goran Erceg, Judy Kennedy

Let be a continuum and let be a homeomorphism. To construct a dynamical system with interesting dynamical properties, the continuum often needs t…

math.DS2022

Transitive points in CR-dynamical systems

Iztok Banič, Goran Erceg, Sina Greenwood +1

We study different types of transitive points in CR-dynamical systems (X,G) with closed relations G on compact metric spaces X. We also introduce transitive and dense orbit transit…

math.CO2022

Some considerations on the maximal safety distance in a graph

Goran Erceg, Aljosa Subasic, Tanja Vojkovic

The work in this paper is motivated by I. Banič's and A. Taranenko's recent paper, where they introduced a new notion, the span of a graph. Their goal was to solve the problem of k…

math.GN2022★ 2 cited

The Lelek fan as the inverse limit of intervals with a single set-valued bonding function whose graph is an arc

Iztok Banic, Goran Erceg, Judy Kennedy

We consider a family of inverse limits of inverse sequences of closed unit intervals with a single upper semi-continuous set-valued bonding function whose graph is an arc; it is th…

math.DS2022★ 3 cited

Minimal dynamical systems with closed relations

Iztok Banic, Goran Erceg, Rene Gril Rogina +1

We introduce dynamical systems with closed relations on compact metric spaces and discuss different types of minimality of such dynamical systems, all of them gener…

math.DS2022

Closed relations with non-zero entropy that generate no periodic points

Iztok Banic, Goran Erceg, Judy Kennedy

The paper is motivated by E. Akin's book about dynamical systems and closed relations [A], and by J. Kennedy's and G. Erceg's recent paper about the entropy of closed relations on…

math.DS2021

Mapping and fixed point property theorems for inverse limits with set-valued bonding functions

Iztok Banic, Goran Erceg, Judy Kennedy

Among other results, the paper gives new mapping theorems and new fixed point property theorems for inverse limits of inverse sequences of compact metric spaces with upper semicont…

math.DS2017★ 18 cited

Topological entropy of closed sets in

Goran Erceg, Judy Kennedy

We generalize the definition of topological entropy due to Adler, Konheim, and McAndrew \cite{AKM} to set-valued functions from a closed subset of the interval to closed subset…