Results 101 to 110 of about 4,936,635 (261)

An Example of Π30-complete Infinitary Rational Relation [PDF]

open access: yesComputer Science Journal of Moldova, 2007
We give in this paper an example of infinitary rational relation, accepted by a 2-tape Buchi automaton, which is Π30-complete in the Borel hierarchy. Moreover the example of infinitary rational relation given in this paper has a very simple structure and
Olivier Finkel
doaj  

Eigenvalues Associated with Borel Sets

open access: yesReal Analysis Exchange, 2006
Every Borel subset K of an interval [c, d] induces a sequence of eigenvalues. If K is closed, the asymptotic behavior of the eigenvalues is related to the positions and lengths of its complementary intervals. The rate of growth becomes “lowest possible” if K has self-similarity properties.
openaire   +2 more sources

Nonparametric Survival Estimation With Contaminated and Adjudicated Events

open access: yesScandinavian Journal of Statistics, EarlyView.
ABSTRACT We study the conditional expert Kaplan–Meier estimator, an extension of the classical Kaplan–Meier estimator designed for time‐to‐event data subject to both right‐censoring and contamination. Such contamination, where observed events may not reflect true outcomes, is common in applied settings, including insurance and credit risk, where expert
Martin Bladt, Kristian Vilhelm Dinesen
wiley   +1 more source

On soft Heine-Borel theorem [PDF]

open access: yes, 2014
In this paper we define soft member , soft bounded set in soft real line , soft usual topology , finite soft set , soft cofinite topology , introduce soft Heine-Borel theorem and converse of soft Heine-Borel theorem .
Hamid Mahmood, Majd
core   +1 more source

There Is More Than Meets the Eye: The Dual Role of Perception in Shaping Color Lexicons

open access: yesTopics in Cognitive Science, EarlyView.
Abstract Color's ultimate physical reality is continuous, and yet human beings “cut” this continuum into a rather small number of categories reflected in their languages’ color lexicon. There are striking cross‐linguistic differences in the color lexicon, which are primarily attributed to differences in communicative needs, but also striking ...
Mathilde Josserand   +3 more
wiley   +1 more source

An Approach of Randomness of a Sample Based on Its Weak Ergodic Limit

open access: yesJournal of Probability and Statistics, 2017
For a Polish Sample Space with a Borel σ-field with a surjective measurable transformation, we define an equivalence relation on sample points according to their ergodic limiting averages.
Jaime A. Londoño
doaj   +1 more source

Selectors for Borel sets with large sections

open access: yes, 1983
We prove a result asserting the existence of a Borel selector for a Borel set in the product of two Polish spaces. This subsumes a number of results about Borel selectors for Borel sets having large sections.
Ashok Maitra
core   +1 more source

Frequency‐dependent contraction rates for the Bayesian method to the inverse source problem

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract This paper addresses an inverse source problem for acoustic waves in a range of frequencies. Our study has two main goals. First, although the problem is severely ill‐posed with a logarithmic stability estimate, we demonstrate, through careful analysis of the forward map's singular values, that increasing the frequency range enhances stability,
Pu‐Zhao Kow, Jenn‐Nan Wang
wiley   +1 more source

Arsenin -- Kunugui Theorem And Weak Forms Of Borel Bimeasurability

open access: yes, 1999
. Let f be a Borel measurable mapping of a Luzin (i.e. absolute Borel) space L onto a metric space M such that f(F ) is a Borel subset of M if F is closed in L.
M. Zelen Y   +3 more
core  

The SIR Model in a Moving Population: Propagation of Infection and Herd Immunity

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 11, Page 2375-2429, November 2026.
ABSTRACT In a collection of particles performing independent random walks on Zd$\mathbb {Z}^d$ we study the spread of an infection with SIR dynamics. Susceptible particles become infected when they meet an infected particle. Infected particles heal and are removed at rate ν$\nu$.
Duncan Dauvergne, Allan Sly
wiley   +1 more source

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