Results 61 to 70 of about 5,065 (309)
Riesz Theory Without Axiom of Choice [PDF]
Proceedings of the American Mathematical Society, 1987 In this paper the Riesz theory for compact linear operators in a normed vector space is considered from the point of view of how far the axiom of choice is involved. Special attention is drawn to the theorem, by which for the operator I − A , A I - A,A being compact, the index vanishes and the ...
openaire +2 more sources
The Kaohsiung Journal of Medical Sciences, EarlyView.ABSTRACT Obesity and psychiatric disorders are the leading causes of global morbidity. Epidemiological studies suggest a bidirectional link between higher body mass index (BMI) and mental health outcomes, but the direction of causality remains uncertain due to confounding and reverse causation. We performed a Mendelian randomization (MR) analysis using
Perl Han Lee +4 more
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Limnology and Oceanography: Methods, EarlyView.Abstract Climate change poses a major threat to ecosystems worldwide, with temperature changes being a key driver of ecological disruption in aquatic environments due to the limited ability of many aquatic species to relocate in response. Despite advances in aquatic experimental approaches to temperature control, most studies rely on simplified warming
Tauany Rodrigues +5 more
wiley +1 more source
Attribute Implication Bases From Galois Connection Structures
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT Modeling knowledge systems by determining relationships among key variables have been and currently is a fundamental and nontrivial challenge in real‐world scenarios. Many approaches have been developed to reach this goal, but many of them are heuristic and require of alternative procedures to provide robust and tractable rules.
M. Eugenia Cornejo +2 more
wiley +1 more source
Filozofia matematyki Wacława Sierpińskiego
Zagadnienia Filozoficzne w Nauce, 2016 The main aim of the paper was to draw attention to Wacław Sierpiński as not only a great mathematician but also a philosopher. We undertook the attempt of reconstruction of Sierpiński’s philosophy. To aim this goal we mainly based ourselves on Sierpiński’
Katarzyna Lewandowska
doaj
Neurourology and Urodynamics, EarlyView.ABSTRACT Introduction Overactive bladder (OAB) is defined as urinary urgency, usually accompanied by increased daytime frequency and/or nocturia, with urgency urinary incontinence (OAB‐wet) or without (OAB‐dry), in the absence of urinary tract infection or other detectable disease.
John E. Speich +9 more
wiley +1 more source
RUDN Journal of Philosophy, 2013 We prove that the strong uniformization does not depend on Church thesis with choice in the set theory with intuitionistic logic and with axiom of extensionality.
Valery Khristoforovich Khakhanian
doaj
Naval Research Logistics (NRL), EarlyView.ABSTRACT We are concerned with the stability of a transferable‐utility cooperative (TU) game. First, the concept of core can be weakened so that the blocking of changes is limited to only those with multilateral backings. This principle of consensual blocking, as well as the traditional core‐defining one of unilateral blocking and one straddling in ...
Jian Yang
wiley +1 more source
Set and revealed preference axioms for multi-valued choice [PDF]
, 2020 Hans Peters, Panos Protopapas
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Nordic Journal of Botany, EarlyView.Pollen limitation, a decrease in seed production due to insufficient pollen receipt, may influence plant demography and the evolution of sexual systems. Its empirical estimation of pollen supplementation of some of the flowers on an individual is well known to be prone to overestimation due to potential resource reallocation among the individual's ...
Xia Jiang +6 more
wiley +1 more source