Results 91 to 100 of about 1,819 (220)
Characterization of topological phase transitions via topological properties of transition points [PDF]
Physical Review B, 2015 We study topological properties of phase transition points of topological quantum phase transitions by assigning a topological invariant defined on a closed circle or surface surrounding the phase transition point in the parameter space of momentum and transition driving parameter.
Li, Linhu, Chen, Shu
openaire +2 more sources
Transitivity of Heisenberg group extensions of hyperbolic systems
, 2011 We show that among Cr extensions (r>0) of a uniformly hyperbolic dynamical system with fiber the standard real Heisenberg group ℋn of dimension 2n+1, those that avoid an obvious obstruction to topological transitivity are generically topologically ...
Nijica, Viorel +8 more
core +1 more source
Do economic shocks spread randomly?: A topological study of the global contagion network.
PLoS ONE, 2020 The spread of economic shocks in an increasingly interconnected global economy has been subject to several studies recently. These studies mostly focus on the synchronization of business cycles among economies and search for the relationship between ...
Tamás Sebestyén, Zita Iloskics
doaj +1 more source
Weak, Strong and Mixed Extensions of Relations to Spaces of Ultrafilters
Mathematical Logic Quarterly, Volume 72, Issue 3, August 2026.ABSTRACT The use of nonstandard methods to characterize properties of weak, strong and mixed extensions of congruences to ultrafilters has been the main topic of several recent papers, focused mostly on congruences and divisions. We show that similar methods can be used to extend these characterizations to arbitrary relations and their interplay.
Leonardo Raffaello Maximilian Gasparro +1 more
wiley +1 more source
, 2006 The main goal of this paper is the investigation of a relevant property which appears in the various definition of deterministic topological chaos for discrete time dynamical system: transitivity.
Alberto Dennunzio +5 more
core +1 more source
Journal of Applied MathematicsThis article extends Alfredo Peris’s work on chaos in set-valued dynamics by providing new characterizations and applications of transitivity and mixing properties.
Illych Alvarez
doaj +1 more source
Belgeo, 2016 This paper explores the urban-geographical potential of simulation approaches combining spatial and topological processes. Drawing on Vértes et al.'s (2012) economical clustering model, we propose a generative network model integrating factors captured ...
Liang Dai +4 more
doaj +1 more source
Hunting Structural Demons in Digital Reticular Chemistry: Lessons From Metal‐Organic Frameworks
Israel Journal of Chemistry, Volume 66, Issue 4, July 2026.Digital reticular chemistry is haunted by “structural demons”, chemically invalid models lurking within massive experimental and hypothetical MOF databases. This mini‐review tracks where these anomalies enter the data pipeline, evaluate the modern computational arsenal used to detect them (from rule‐based algorithms to machine‐learning classifiers ...
Yongchul G. Chung, Myoung Soo Lah
wiley +1 more source
Topology Dependent Quantities at the Anderson Transition [PDF]
Physical Review Letters, 2000 The boundary condition dependence of the critical behavior for the three dimensional Anderson transition is investigated. A strong dependence of the scaling function and the critical conductance distribution on the boundary conditions is found, while the critical disorder and critical exponent are found to be independent of the boundary conditions.
Slevin, Keith +2 more
openaire +3 more sources
Robust transitivity of singular hyperbolic attractors
, 2021 International audienceSingular hyperbolicity is a weakened form of hyperbolicity that has been introduced for vector fields in order to allow non-isolated singularities inside the non-wandering set.
Crovisier, Sylvain, Yang, Dawei
core +1 more source