Results 21 to 30 of about 34,334 (114)

Equilibrium states and invariant measures for random dynamical systems

open access: yes, 2014
Random dynamical systems with countably many maps which admit countable Markov partitions on complete metric spaces such that the resulting Markov systems are uniformly continuous and contractive are considered.
A. Baraviera   +23 more
core   +1 more source

Multivariate representations of univariate marked Hawkes processes

open access: yesScandinavian Journal of Statistics, Volume 53, Issue 1, Page 140-174, March 2026.
Abstract Univariate marked Hawkes processes are used to model a range of real‐world phenomena including earthquake aftershock sequences, contagious disease spread, content diffusion on social media platforms, and order book dynamics. This paper illustrates a fundamental connection between univariate marked Hawkes processes and multivariate Hawkes ...
Louis Davis   +3 more
wiley   +1 more source

Entropy rigidity for cusped Hitchin representations

open access: yesJournal of Topology, Volume 19, Issue 1, March 2026.
Abstract We establish an entropy rigidity theorem for Hitchin representations of geometrically finite Fuchsian groups which generalizes a theorem of Potrie and Sambarino for Hitchin representations of closed surface groups. In the process, we introduce the class of (1,1,2)‐hypertransverse groups and show for such a group that the Hausdorff dimension of
Richard Canary   +2 more
wiley   +1 more source

Evolution and Provenance of the Polish Rotliegend in the Southern Permian Basin

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract The Southern Permian Basin (SPB) has been extensively explored for ore deposits. However, a comprehensive evaluation of the remaining copper potential, specifically for sediment‐hosted stratiform copper system, remains lacking. This study applies goSPL, an open‐source landscape and stratigraphic evolution model, to reconstruct the Permian rift‐
Beatriz Hadler Boggiani   +3 more
wiley   +1 more source

Uniformity, Universality, and Computability Theory

open access: yes, 2017
We prove a number of results motivated by global questions of uniformity in computability theory, and universality of countable Borel equivalence relations. Our main technical tool is a game for constructing functions on free products of countable groups.
Marks, Andrew S
core   +1 more source

Revised History of Pleistocene Vertical Motions in NE Sicily and Southern Calabria, Italy, From 40Ar/39Ar Dating and Fault Zone Morphology

open access: yesTectonics, Volume 45, Issue 2, February 2026.
Abstract Long‐term rates of crustal uplift in southern Calabria and NE Sicily are incompletely understood due to limited information about the age of marine terraces at 1.0–1.3 km above sea level (asl). This study provides a new constraint on high‐elevation terrace ages through integrated analysis of geochronology, stratigraphy, shoreline modeling, and
Rebecca J. Dorsey   +5 more
wiley   +1 more source

Nonemptiness of the Alpha‐Core

open access: yesJournal of Public Economic Theory, Volume 28, Issue 1, February 2026.
ABSTRACT We prove nonemptiness of the α $\alpha $‐core for balanced games with nonordered preferences, extending and generalizing in several aspects the results of Scarf (1971), Border (1984), Florenzano (1989), Yannelis (1991b), and Kajii (1992). In particular, we answer an open question in Kajii (1992) regarding the applicability of the nonemptiness ...
V. Filipe Martins‐da‐Rocha   +1 more
wiley   +1 more source

Baire reductions and good Borel reducibilities

open access: yes, 2010
In reference [8] we have considered a wide class of "well-behaved" reducibilities for sets of reals. In this paper we continue with the study of Borel reducibilities by proving a dichotomy theorem for the degree-structures induced by good Borel ...
Ros, Luca Motto
core   +1 more source

Sets preserved by a large subgroup of the special linear group

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract Let E$E$ be a subset of the affine plane over a finite field Fq${\mathbb {F}}_q$. We bound the size of the subgroup of SL2(Fq)$\operatorname{SL}_2({\mathbb {F}}_q)$ that preserves E$E$. Specifically, there exists a constant c>0$c>0$ such that for any E⊂Fq2$E\subset {\mathbb {F}}_q^2$, if E$E$ is preserved by more than c|E|3/2$c|E|^{3/2 ...
Thang Pham   +2 more
wiley   +1 more source

Symbolic extensions and uniform generators for topological regular flows

open access: yes, 2018
Building on the theory of symbolic extensions and uniform generators for discrete transformations we develop a similar theory for topological regular flows.
Burguet, David
core   +2 more sources

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