Results 81 to 90 of about 4,936,635 (261)

Borel-amenable reducibilities for sets of reals [PDF]

open access: yesThe Journal of Symbolic Logic, 2009
AbstractWe show that if ℱ is any “well-behaved” subset of the Borel functions and we assume the Axiom of Determinacy then the hierarchy of degrees on (ωω) induced by ℱ turns out to look like the Wadge hierarchy (which is the special case where ℱ is the set of continuous functions).
openaire   +7 more sources

Asymptotics of Time‐Varying Processes in Continuous‐Time Using Locally Stationary Approximations

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We introduce a general theory on stationary approximations for locally stationary continuous‐time processes. Based on the stationary approximation, we use θ$$ \theta $$‐weak dependence to establish laws of large numbers and central limit type results under different observation schemes.
Robert Stelzer, Bennet Ströh
wiley   +1 more source

PARTITIONING THE REAL LINE INTO BOREL SETS

open access: yesThe Journal of Symbolic Logic, 2023
AbstractFor which infinite cardinals $\kappa $ is there a partition of the real line ${\mathbb R}$ into precisely $\kappa $ Borel sets? Work of Lusin, Souslin, and Hausdorff shows that ${\mathbb R}$ can be partitioned into $\aleph _1$ Borel sets. But other than this, we show that the spectrum of possible sizes of partitions of ${\mathbb R}$
openaire   +3 more sources

Extensions of lattice set functions to regular Borel measures [PDF]

open access: yes, 2012
CITATION: Maritz, P. 2012. Extensions of lattice set functions to regular Borel measures. Journal of Informatics and Mathematical Sciences, 4(1):1–14, doi:10.26713/jims.v4i1.62.The original publication is available at https://www.rgnpublications.comThis
Maritz. P.
core   +1 more source

Measure‐valued processes for energy markets

open access: yesMathematical Finance, Volume 35, Issue 2, Page 520-566, April 2025.
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero   +3 more
wiley   +1 more source

Catalogue Ch. Borel-Clerc éditeur - Les œuvres du catalogue des œuvres de Charles Borel-Clerc

open access: yes, 1909
Catalogue Ch. Borel-Clerc éditeur - Les œuvres du catalogue des œuvres de Charles Borel-Clerc - Verso Elle est gentille. Chanson - Répertoire Mayol [cotage C.B.9 - non daté - image recto medihal-00584767] ; contient des titres attribués à Joanyd, Mayol ...
Charles Borel-Clerc (1879-1959) Compositeur-Éditeur, .   +1 more
core   +2 more sources

Construction of Borel Inseparable Coanalytic Sets

open access: yesReal Analysis Exchange, 2003
The authors prove several general combinatorial results each of which gives a large family of pairwise disjoint, Borel inseparable, complete coanalytic sets. They use these combinatorial results to construct some concrete examples of such families in analysis and topology.
CAMERLO, RICCARDO, U. B. DARJI
openaire   +5 more sources

Optimal Portfolio Choice With Cross‐Impact Propagators

open access: yesMathematical Finance, EarlyView.
ABSTRACT We consider a class of optimal portfolio choice problems in continuous time where the agent's transactions create both transient cross‐impact driven by a matrix‐valued Volterra propagator, as well as temporary price impact. We formulate this problem as the maximization of a revenue‐risk functional, where the agent also exploits available ...
Eduardo Abi Jaber   +2 more
wiley   +1 more source

Nonlinear elliptic equations with self-adjoint integro-differential operators and measure data under sign condition on the nonlinearity

open access: yesAdvanced Nonlinear Studies
We study the existence problem for semilinear equations (E): −Au = f(⋅, u) + μ, with Borel measure μ and operator A that generates a symmetric Markov semigroup.
Klimsiak Tomasz
doaj   +1 more source

Свойство выпуклости взаимных мультифрактальных размерностей [PDF]

open access: yesПроблемы анализа, 2010
В работе установлено свойство выпуклости взаимной мультифрактальной упаковочной размерности подмножества пересечения носителей вероятностных борелевских мер μ и v.
Светова Н. Ю.
doaj  

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