Results 21 to 30 of about 658,996 (166)

Characterizations of Ideals in Intermediate C-Rings A(X) via the A-Compactifications of X

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2013
Let X be a completely regular topological space. An intermediate ring is a ring A(X) of continuous functions satisfying C*(X)⊆A(X)⊆C(X). In Redlin and Watson (1987) and in Panman et al. (2012), correspondences 𝒵A and ℨA are defined between ideals in A(X)
Joshua Sack, Saleem Watson
doaj   +1 more source

The motivational peculiarities of bribe-takers

open access: yesSHS Web of Conferences, 2018
Criminology (as the scientific study of criminal behaviour on the individual and social level) and psychology (as the science, which seeks to understand individuals and groups) pay special attention to motivation – a theoretical construction, used to ...
Krivins A.
doaj   +1 more source

On a rigidity result for Kolmogorov-type operators

open access: yesBruno Pini Mathematical Analysis Seminar
Let D be a bounded open subset of ℝN and let z0 be a point of D. Assume that the Newtonian potential of D is proportional outside D to the potential of a mass concentrated at z0. Then D is a Euclidean ball centred at z0. This theorem, proved by Aharonov,
Alessia E. Kogoj
doaj   +1 more source

Near-threshold pion production in diproton reactions with polarised beams and target at ANKE-COSY

open access: yesEPJ Web of Conferences, 2012
An extensive experimental study of near-threshold pion production in diproton reactions is underway at the ANKE-COSY spectrometer (Jülich). The programme is aimed at isolating the four-nucleon-pion contact interaction term appearing in the XPT expansions
Dymov S.
doaj   +1 more source

Weak calibers and the Scott-Watson theorem [PDF]

open access: yesCzechoslovak Mathematical Journal, 1996
Notions of weak caliber, feebly compact space and almost metacompact space are recalled and generalized to a form related to a cardinal \(\kappa\). It is proved that, for a regular cardinal, every topological space is weakly \(\kappa\)-compact if it has weak caliber \(\kappa \), is feebly \(\kappa\)-compact and is almost \(\kappa\)-metacompact.
openaire   +2 more sources

A generalization of the Watson theorem

open access: yesPhysics Letters B, 1973
Abstract We prove that the difference between the phase of a form factor and the phase shift of the relevant partial scattering amplitude is bounded in terms of inelasticity.
openaire   +1 more source

Applications of extended Watson's summation theorem

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2018
Summary: In this research paper, several interesting applications of the extended classical summation theorem are given. As special cases, we recover several known results available in the literature.
Kim, Young Sup   +2 more
openaire   +2 more sources

A conversation with James V. Zidek

open access: yesCanadian Journal of Statistics, EarlyView.
AbstractThis article documents a series of exchanges between the authors and the senior Canadian statistician Jim Zidek in early 2026. The interview traces his life trajectory, surveying his principal contributions to statistics while offering insights into his motivations, successes, and challenges. Zidek is a Fellow of the Royal Society of Canada and
Christian Genest, Nancy E. Heckman
wiley   +1 more source

A New Implementation of Network GARCH Model for Stock Volatility and Co‐Volatility Forecasting

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT Volatility clustering and spillovers are key features of financial time series with many cross‐sectional assets. While network analysis links similar or correlated stocks and helps trace volatility spillovers, contemporary multivariate ARCH‐GARCH formulations struggle to represent structured network dependence and remain parsimonious.
Peiyi Zhou
wiley   +1 more source

Applications of Extended Kummer’s Summation Theorem

open access: yesMathematics
In the theory of hypergeometric series and generalized hypergeometric series, classical summation theorems, such as the two of Gauss and those of Kummer and Bailey for the series F12; those of Watson, Dixon, Whipple, and Saalschutz for the series F23 ...
Xiaoxia Wang   +3 more
doaj   +1 more source

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