Results 31 to 40 of about 2,351 (264)

On Coefficient Inequalities of Starlike Functions Related to the q-Analog of Cosine Functions Defined by the Fractional q-Differential Operator

Fractal and Fractional, 2023
This article extends the study of q-versions of analytic functions by introducing and studying the association of starlike functions with trigonometric cosine functions, both defined in their q-versions.
Yusra Taj, Sarfraz Nawaz Malik, Adriana Cătaş, Jong-Suk Ro, Fairouz Tchier, Ferdous M. O. Tawfiq   +5 more
doaj   +1 more source

Functional extreme learning machine

Frontiers in Computational Neuroscience, 2023
IntroductionExtreme learning machine (ELM) is a training algorithm for single hidden layer feedforward neural network (SLFN), which converges much faster than traditional methods and yields promising performance. However, the ELM also has some shortcomings, such as structure selection, overfitting and low generalization performance.MethodsThis article ...
Xianli Liu, Guo Zhou, Yongquan Zhou, Yongquan Zhou, Yongquan Zhou, Qifang Luo, Qifang Luo   +6 more
openaire   +4 more sources

Characterizing extremal coefficient functions and extremal correlation functions

, 2012
We focus on two dependency quantities of a max-stable random field $X$ on some space $T$: the extremal coefficient function $θ$ which we define on finite sets of $T$ and the extremal correlation function $χ(s,t)=\lim_{x \uparrow \infty} \PP(X_s \geq x \mid X_t \geq x)$.
Strokorb, Kirstin, Schlather, Martin
openaire   +4 more sources

From curves to currents

Forum of Mathematics, Sigma, 2021
Many natural real-valued functions of closed curves are known to extend continuously to the larger space of geodesic currents. For instance, the extension of length with respect to a fixed hyperbolic metric was a motivating example for the development of
Dídac Martínez-Granado, Dylan P. Thurston   +1 more
doaj   +1 more source

On exact correlation functions of chiral ring operators in 2d N = 2 , 2 $$ \mathcal{N}=\left(2,\ 2\right) $$ SCFTs via localization

Journal of High Energy Physics, 2018
We study the extremal correlation functions of (twisted) chiral ring operators via superlocalization in N = 2 , 2 $$ \mathcal{N}=\left(2,\ 2\right) $$ superconformal field theories (SCFTs) with central charge c ≥ 3, especially for SCFTs with Calabi-Yau ...
Jin Chen
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Extremal functions for sequences

Discrete Mathematics, 1996
This paper deals with a certain kind of finite sequences of symbols having no immediate repetition and with no alternating subsequence of length \(s\). Strong upper and lower bounds on the maximum length of such sequences with \(n\) symbols are well known. In this paper the author discusses some properties of the generalization of this concept and goes
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Extremal Functions with Vanishing Condition [PDF]

Constructive Approximation, 2015
We determine the optimal majorant $M^+$ and minorant $M^-$ of exponential type for the truncation of $x\mapsto (x^2+a^2)^{-1}$ with respect to general de Branges measures. We prove that \[ \int_\mathbb{R} (M^+ - M^-) |E(x)|^{-2}dx = \frac{1}{a^2 K(0,0)} \] where $K$ is the reproducing kernel for $\mathcal{H}(E)$.
Littmann, Friedrich, Spanier, Mark
openaire   +2 more sources

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Extremal Functions and Calderón's Reproducing Formula for the Laguerre-Bessel Two-Wavelet Transform [PDF]

Sahand Communications in Mathematical Analysis
The main purpose of this paper is to study the wavelet transform associated with the Laguerre-Bessel transform and to provide an integral representation of the extremal function related to this transform. We then introduce the notion of a Laguerre-Bessel
Ahmed Chana, Abdellatif Akhlidj
doaj   +1 more source