Results 21 to 30 of about 1,198,252 (292)

Variance Functions with Meromorphic Means

The Annals of Probability, 1991
A natural exponential family is characterized by a pair \((\Omega,V)\) where \(\Omega\), the mean domain, is an open interval in \(\mathbb{R}\) and \(V\) is the associated variance function, regarded as a function of the mean. The authors make a further contribution to the problem of characterizing the set of possible pairs \((\Omega,V)\), a question ...
Bar-Lev, Shaul K., Bshouty, Daoud, Enis, Peter   +2 more
openaire   +2 more sources

Asymptotic Distribution of an Estimator for Variance Function of a Compound Periodic Poisson Process with Power Function Trend

JTAM (Jurnal Teori dan Aplikasi Matematika), 2022
In this paper, an asymptotic distribution of the estimator for the variance function of a compound periodic Poisson process with power function trend is discussed.
Muhammad Wiranadi Utama, I Wayan Mangku, Bib Paruhum Silalahi   +2 more
doaj   +1 more source

THE ECONOMIC RELATIONSHIP BETWEEN EXCHANGE RATE AND MONEY SUPPLY AND THEIR IMPACT ON AGRICULTURAL PRODUCTS IN IRAQ

The Iraqi Journal of Agricultural science, 2023
This research aimed to measure and analyze the impact of exchange rate shocks on some variables of the Iraqi economy during (1990-2022), because of the different effects of these shocks on the macroeconomic variables represented in money supply and ...
R. T. Al-Wasity, Hala A. Al-Attabi
doaj   +1 more source

Some Limiting Laws in Non-Commutative Probability

Axioms
In this article, we provide some new limiting laws related to the free multiplicative law of large numbers and involving free and Boolean additive convolutions.
Ayed. R. A. Alanzi, Raouf Fakhfakh, Fatimah Alshahrani   +2 more
doaj   +1 more source

On $\mathbb{T}$-Transformation of Probability Measures

Mathematics
The concept of the (T=(s,t))-transformation of probability measures, introduced for s>0 and t∈R, is examined in this work from the perspective of Cauchy–Stieltjes kernel (CSK) families and their related variance functions (VFs).
Shokrya S. Alshqaq, Ohud A. Alqasem, Raouf Fakhfakh   +2 more
doaj   +1 more source

Tauber Theory for Infinitely Divisible Variance Functions [PDF]

Bernoulli, 1997
The authors present a kind of Tauber theory for infinitely divisible natural exponential families. The main result states that the variance function of a family is regularly varying if and only if the spectral measure in the Lévy-Khinchin representation is regularly varying. A complete proof of this result is given elsewhere.
Bent Jørgensen, José Raúl Martínez, Bent Jorgensen, Jose Raul Martinez   +3 more
openaire   +4 more sources

Notes on the Free Additive Convolution

Axioms
The investigation of free additive convolution is a key concept in free probability theory, offering a framework for studying the sum of freely independent random variables.
Shokrya S. Alshqaq, Raouf Fakhfakh, Fatimah Alshahrani   +2 more
doaj   +1 more source

Studies on the Marchenko–Pastur Law

Mathematics
In free probability, the theory of Cauchy–Stieltjes Kernel (CSK) families has recently been introduced. This theory is about a set of probability measures defined using the Cauchy kernel similarly to natural exponential families in classical probability ...
Ayed. R. A. Alanzi, Ohud A. Alqasem, Maysaa Elmahi Abd Elwahab, Raouf Fakhfakh   +3 more
doaj   +1 more source

Some Results on the Free Poisson Distribution

Axioms
Let K+(μi)={Qsiμi,si∈(m0μi,m+μi)}, i=1,2, be two CSK families generated by the nondegenerate probability measures μ1 and μ2 with support bounded from above.
Ayed. R. A. Alanzi, Ohud A. Alqasem, Maysaa Elmahi Abd Elwahab, Raouf Fakhfakh   +3 more
doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar, Denise M. Connolly, Ellen Kellington, Elyse Zelunka, Karla Kerrigan, Furqan Shaikh, Paul C. Nathan, Meredith S. Irwin, Sarah Cohen‐Gogo   +8 more
wiley   +1 more source