Results 41 to 50 of about 594 (163)

Variation in the Oxidative State of Collared Flycatcher (Ficedula albicollis) Nestlings and Its Association With Their Plumage Coloration

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
Plumage coloration is widely recognized as an important component in intraspecific communication. Our aim was to examine the variation of oxidative parameters and their associations with the coloration of two different nestling plumage traits in collared flycatchers (Ficedula albicollis).
Gabriella Kőmüves   +5 more
wiley   +1 more source

Some unsolved problems on meromorphic functions of uniformly bounded characteristic

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
The family UBC(R) of meromorphic functions of uniformly bounded characteristic in a Rieman surface R is defined in terms of the Shimizu-Ahlfors characteristic function.
Shinji Yamashita
doaj   +1 more source

Building a Digital Twin for Material Testing: Model Reduction and Data Assimilation

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT The rapid advancement of industrial technologies, data collection, and handling methods has paved the way for the widespread adoption of digital twins (DTs) in engineering, enabling seamless integration between physical systems and their virtual counterparts.
Rubén Aylwin   +5 more
wiley   +1 more source

Optimal discrete measures for Riesz potentials

open access: yesTransactions of the American Mathematical Society, 2018
For weighted Riesz potentials of the form K ( x , y )
Borodachov, S. V.   +3 more
openaire   +3 more sources

Musielak-Orlicz-Hardy Spaces Associated with Operators Satisfying Reinforced Off-Diagonal Estimates

open access: yesAnalysis and Geometry in Metric Spaces, 2013
Let X be a metric space with doubling measure and L a one-to-one operator of type ω having a bounded H∞ -functional calculus in L2(X) satisfying the reinforced (pL; qL) off-diagonal estimates on balls, where pL ∊ [1; 2) and qL ∊ (2;∞]. Let φ : X × [0;∞) →
Bui The Anh   +4 more
doaj   +1 more source

Financial Statement Information and Equity Value: The Role of Real Options Characteristics

open access: yesFinancial Management, Volume 55, Issue 2, Page 301-328, Summer 2026.
ABSTRACT This paper examines whether firm‐specific real options characteristics are equity value‐relevant beyond valuation estimates anchored in financial statements. Using extensive historical data for the United Kingdom, we assess and compare the forecast accuracy and explanatory power for stock prices of equity valuation models based on residual ...
Mingyu (Chandler) Chen   +2 more
wiley   +1 more source

Riesz spaces valued submeasures and application to group-valued finitely additive measures

open access: yesLe Matematiche, 1987
As a consequence of a general Domination Theorem given for a subadditive measure with values in a Riesz space, we prove the arcwise connectedness of the range of a L.C.V.T.S.-valued and of a group-valued finitely additive measure.
Anna Martellotti, Anna R. Sambucini
doaj  

Hub‐and‐Spoke Collusion With a Third‐Party Pricing Algorithm

open access: yesThe Journal of Industrial Economics, Volume 74, Issue 2, Page 181-196, June 2026.
ABSTRACT A data analytics company delivers an efficiency by supplying a pricing algorithm that allows prices to more effectively respond to demand variation. In this setting, I consider a new form of hub‐and‐spoke collusion: A data analytics company (hub) coordinates the prices of competitors (spokes) through its pricing algorithm.
Joseph E. Harrington Jr.
wiley   +1 more source

Spatial depth for data in metric spaces

open access: yesScandinavian Journal of Statistics, Volume 53, Issue 2, Page 684-711, June 2026.
Abstract We propose a novel measure of statistical depth, the metric spatial depth, for data residing in an arbitrary metric space. The measure assigns high (low) values for points located near (far away from) the bulk of the data distribution, allowing quantifying their centrality/outlyingness.
Joni Virta
wiley   +1 more source

On Construction of Bounded Sets Not Admitting a General Type of Riesz Spectrum

open access: yesAxioms
We construct a bound set that does not admit a Riesz spectrum containing a nonempty periodic set for which the period is a rational multiple of a fixed constant.
Dae Gwan Lee
doaj   +1 more source

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