Results 61 to 70 of about 58,058 (118)

Combinatorial Designs with Two Singular Values I. Uniform Multiplicative Designs [PDF]

open access: yes
In this and a sequel paper [10] we study combinatorial designs whose incidence matrix has two distinct singular values.These generalize 2-(v, k, É) designs, and include partial geometric designs and uniform multiplicative designs.Here we study the latter,
Spence, E., Dam, E.R. van
core  

Multiple Hypo- and Hyper-Pigmentation

open access: yesIndian Journal of Dermatology, 2022
Zhang, Li-Wen, Wu, Juan
openaire   +2 more sources

Krasner (m,n)-hyperring of fractions

open access: yes, 2022
The formation of rings of fractions and the associated process of localization are the most important technical tools in commutative algebra. Krasner (m,n)-hyperrings are a generalization of (m,n)-ring. Let R be a commutative Krasner (m,n)-hyperring. The
Anbarloei, M.
core  

Capturing the zero: a new class of zero-augmented distributions and multiplicative error processes [PDF]

open access: yes, 2010
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed on high frequencies, such as cumulated trading ...
Hautsch, Nikolaus   +2 more
core  

Multiplicative uncertainty, central bank transparency and optimal degree of conservativeness [PDF]

open access: yes
This paper extends the results of Kobayashi (2003) and Ciccarone and Marchetti (2009) by considering the optimal choice of central bank conservativeness. It is shown that the government can choose a sufficiently populist but opaque central banker so that
Meixing Dai
core  

On Weakly S-2 Prime Hyperideals of Multiplicative Hyperrings

open access: yes
Suppose that R is a commutative multiplicative hyperring with identity and \( S\subseteq R \) is a multiplicatively closed subset. In this paper, we introduce and study the notions of weakly 2- prime hyperideals and weakly S-2 prime hyperideals, which ...
Gürsel Yeşilot   +3 more
core   +2 more sources

(Weakly) $(\alpha,\beta)$-prime hyperideals in commutative multiplicative hypeering [PDF]

open access: yes
Let $H$ be a commutative multiplicative hyperring and $\alpha, \beta \in \mathbb{Z}^+$. A proper hyperideal $P$ of $H$ is called (weakly) $(\alpha,\beta)$-prime if $x^\alpha \circ y \subseteq P$ for $x,y \in H$ implies $x^\beta \subseteq P$ or $y \in P$.
Anbarloei, Mahdi
core   +1 more source

Cross hedging under multiplicative basis risk [PDF]

open access: yes, 2011
Cross hedging price risk in an incomplete financial market creates basis risk. We propose a new way of modeling basis risk where price risk and basis risk are combined in a multiplicative way.
Adam-Müller, Axel, Nolte, Ingmar
core   +1 more source

A new mixed multiplicative-additive model for seasonal adjusment [PDF]

open access: yes
Usually, seasonal adjustment is based on time series models which decompose an unadjusted series into the sum or the product of four unobservable components (trendcycle, seasonal, working-day and irregular components).
Arz, Stephanus
core  

On the priority vector associated with a fuzzy preference relation and a multiplicative preference relation. [PDF]

open access: yes
We propose two straightforward methods for deriving the priority vector associated with a fuzzy preference relation. Then, using transformations between multiplicative preference relations and fuzzy preference relations, we study the relationships ...
Matteo Brunelli, Michele Fedrizzi
core  

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