Results 131 to 140 of about 3,995 (269)

Relative Arbitrage Opportunities With Interactions Among N Investors

Mathematical Finance, EarlyView.
ABSTRACT The relative arbitrage portfolio outperforms a benchmark portfolio over a given time‐horizon with probability one. With market price of risk processes depending on the market portfolio and investors, this paper analyzes the multi‐agent optimization of relative arbitrage opportunities in the coupled system of market and wealth dynamics.
Tomoyuki Ichiba, Nicole Tianjiao Yang
wiley   +1 more source

Cauchy Functions for Dynamic Equations on a Measure Chain

Journal of Mathematical Analysis and Applications, 2002
A time scale is any nonempty closed subset of \({\mathbb R}\). The time scales calculus unifies and extends the usual differential (\({\mathbb T}={\mathbb R}\)) and difference (\({\mathbb T}={\mathbb Z}\)) calculus. This paper studies the Cauchy function for an \(n\)th order linear dynamic equation on such a time scale.
openaire   +1 more source

Sparse Minimum Redundancy Maximum Relevance for Feature Selection

Scandinavian Journal of Statistics, EarlyView.
ABSTRACT We propose a feature screening method that integrates both feature–feature and feature–target relationships. Inactive features are identified via a penalized minimum Redundancy Maximum Relevance (mRMR) procedure, which is the continuous version of the classical mRMR penalized by a non‐convex regularizer, and where the parameters estimated as ...
Peter Naylor, Benjamin Poignard, Héctor Climente‐González, Makoto Yamada   +3 more
wiley   +1 more source

Alternation of must, have to, and need to in English as a lingua franca

World Englishes, EarlyView.
Abstract This study explores the grammatical variability of modal auxiliary verbs in English as a lingua franca. Focusing on the ongoing change must, have to, and need to, this research utilizes two spoken corpora: the Vienna–Oxford International Corpus of English (VOICE) and the Asian Corpus of English (ACE).
Chunyuan Nie, Lea Meriläinen, Mikko Laitinen   +2 more
wiley   +1 more source

Functional differential equations of the cauchy-kowalevsky type

Aequationes Mathematicae, 1985
Hintergrund dieser Untersuchungen sind z.B. partielle Differentialgleichungssysteme \[ u_ t(t,z)=c(t,z,u(t-h_ 1,z)...)+\sum^{n}_{i=1}B_ i(t,z,u(t-h^ i_ 1,z\quad),...)u_{z_ i}(t-h'\!_ i,z) \] mit Verschiebungen in t. Anfangswerte werden daher nicht nur längs \(t=0\), \(z\in \Omega c{\mathbb{C}}^ n\), sondern in \(G_ 0:=[-r,0]\times \Omega\) (r\(\geq 0)\)
openaire   +2 more sources

On the Cauchy–Rassias stability of a generalized additive functional equation

, 2007
Let X and Y be Banach spaces and f:X→Y an odd mapping. We solve the following generalized additive functional equationrf(∑j=1dxjr)+∑ι(j)=0,1∑j=1dι(j)=lrf(∑j=1d(−1)ι(j)xjr)=(Cld−1−Cl−1d−1+1)∑j=1df(xj) for all x1,…,xd∈X.
Jung-Rye Lee, Shin, Dong-Yun, Lee, Jung-Rye, Dong-Yun Shin   +3 more
core   +1 more source

Digital N‐of‐1 trials and their application in experimental physiology

Experimental Physiology, EarlyView.
Abstract Traditionally, studies in experimental physiology have been conducted in small groups of human participants, animal models or cell lines. Identifying optimal study designs that achieve sufficient power for drawing proper statistical inferences to detect group level effects with small sample sizes has been challenging. Moreover, average effects
Stefan Konigorski, Mathias Ried‐Larsen, Christopher H. Schmid   +2 more
wiley   +1 more source

Solution of the integrated Cauchy functional equation a half line using on exchangeability

, 1987
A new proof is given based on an infinite sequence of exchangeable random variables for the solution of the integrated Cauchy functional equation studied by Lau and Rao (1982)
Alzaid, Abdulhamid A., Radhakrishna Rao, C., Shanbhag, D. N.   +2 more
core   +1 more source

Hyperstability of Cauchy and Jensen functional equations in 2-normed spaces

Journal of Inequalities and Applications
In this article, with simple and short proofs without applying fixed point theorems, some hyperstability results corresponding to the functional equations of Cauchy and Jensen are presented in 2-normed spaces.
Abbas Najati, Yavar Khedmati Yengejeh, Kandhasamy Tamilvanan, Masho Jima Kabeto   +3 more
doaj   +1 more source

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source