Results 71 to 80 of about 5,667 (233)
On Boolean algebras which have the Vitali-Hahn-Saks property
Le Matematiche, 1997 Given a boolean algebra A, we say when A verifies the Drewnowski condition. In thepaper we prove that if a boolean algebra verifies the Drewnowski condition then A has the Vitali-Hahn-Saks property. Also other related questions are investigated.
Dimitru Popa
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Reflexive algebras and sigma algebras
International Journal of Mathematics and Mathematical Sciences, 1986 The concept of a reflexive algebra (σ-algebra) β of subsets of a set X is defined in this paper. Various characterizations are given for an algebra (σ-algebra) β to be reflexive.
T. C. Przymusinski, V. K. Srinivasan
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Safe Stabilization Using Non‐Smooth Control Lyapunov Barrier Function
International Journal of Robust and Nonlinear Control, Volume 36, Issue 11, Page 5823-5835, 25 July 2026.ABSTRACT This paper addresses the challenge of safe stabilization, ensuring the system state reaches the origin while avoiding unsafe state regions. Existing approaches that rely on smooth Lyapunov barrier functions often fail to guarantee a feasible controller. To overcome this limitation, we introduce the non‐smooth control Lyapunov barrier function (
Jianglin Lan +3 more
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Completeness for the coalgebraic cover modality [PDF]
Logical Methods in Computer Science, 2012 We study the finitary version of the coalgebraic logic introduced by L. Moss. The syntax of this logic, which is introduced uniformly with respect to a coalgebraic type functor, required to preserve weak pullbacks, extends that of classical propositional
Clemens Kupke +2 more
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Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.Abstract INTRODUCTION The WW‐FINGERS network has demonstrated the efficacy of multidomain non‐pharmaceutical interventions (NPIs) but left their real‐world implementation largely unexplored, prompting this study in Changxing County to identify key determinants and develop actionable strategies for community‐based delivery.
Zishuo Huang +8 more
wiley +1 more source
Information modeling of the normal forms of logical functions in Maple system [PDF]
ITM Web of ConferencesThe article discusses possible ways to use the Maple computer algebra system to obtain perfect conjunctive and disjunctive normal forms. Computer algebra systems make it possible to expand the possibilities for creating, applying and using mathematical ...
Olenev Aleksandr +3 more
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Gődel filters in residuated lattices
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021 In this paper, in the spirit of [4], we study a new type of filters in residuated lattices : Gődel filters. So, we characterize the filters for which the quotient algebra that is constructed via these filters is a Gődel algebra and we establish the ...
Piciu Dana +2 more
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Text Mining in Bibliometrics and Science Mapping: A Methodological Review
WIREs Computational Statistics, Volume 18, Issue 2, June 2026.Text mining has become a foundational component of contemporary bibliometrics and science mapping, enabling systematic analysis of the semantic structure, thematic evolution, and cognitive organization of scientific fields. Integrating textual evidence with relational indicators enriches knowledge maps and supports more comprehensive, content‐sensitive
Michelangelo Misuraca
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Survey‐Based Research for Creativity and Innovation Management: Review and Recommendations
Creativity and Innovation Management, Volume 35, Issue 2, Page 395-410, June 2026.ABSTRACT Survey methodology remains a widely used data collection method in creativity and innovation management studies. However, evolving technological advancements and methodological challenges necessitate a reassessment of best practices to benefit the most from it.
Marco Mismetti +2 more
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Principia: An International Journal of Epistemology, 2009 In order to measure the degree of dissimilarity between elements of a Boolean algebra, the author’s (1984) proposed to use pseudometrics satisfying generalizations of the usual axioms for identity.
David Miller
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