Results 41 to 50 of about 51,880 (308)

Free Convolution and the Random Sum of Matrices

open access: bronzePublications of the Research Institute for Mathematical Sciences, 1993
We show that the spectral measure of the sum of two selfadjoint matrices is 'almost surely' given by the free convolution (in the sense of Voiculescu) of the spectral measures of the two matrices if their size tends to infinity.
Roland Speicher
openalex   +5 more sources

On moments of twisted $L$-functions [PDF]

open access: yes, 2016
We study the average of the product of the central values of two $L$-functions of modular forms $f$ and $g$ twisted by Dirichlet characters to a large prime modulus $q$.
Blomer, Valentin   +4 more
core   +1 more source

Subclasses of Noshiro-Type Starlike Harmonic Functions Involving q-Srivastava–Attiya Operator

open access: yesMathematics, 2023
In this paper, the harmonic function related to the q-Srivastava–Attiya operator is described to introduce a new class of complex harmonic functions that are orientation-preserving and univalent in the open-unit disk. We also cover some important aspects
Gangadharan Murugusundaramoorthy   +3 more
doaj   +1 more source

Estimates for character sums with various convolutions [PDF]

open access: yesActa Arithmetica, 2017
We provide estimates for sums of the form \[\left|\sum_{a\in A}\sum_{b\in B}\sum_{c\in C} (a+b+c)\right|\] and \[\left|\sum_{a\in A}\sum_{b\in B}\sum_{c\in C}\sum_{d\in D} (a+b+cd)\right|\] when $A,B,C,D\subset \mathbb F_p$, the field with $p$ elements and $ $ is a non-trivial multiplicative character modulo $p$.
openaire   +3 more sources

A Convolution Approach on Partial Sums of Certain Harmonic Univalent Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
The purpose of the present paper is to establish some new results giving the sharp bounds of the real parts of ratios of harmonic univalent functions to their sequences of partial sums by using convolution.
Saurabh Porwal
doaj   +1 more source

On a shifted convolution sum problem

open access: yesJournal of Number Theory, 2022
Abstract Let f be a holomorphic newform of prime level p and trivial nebentypus. For p 1 + e ≪ M ≪ p 3 − e , and 0 | u | ≪ M / p we prove that ∑ m = 1 ∞ λ f ( m ) λ f ( m + p u ) F ( m M ) ≪ p 1 / 4 + e M 3 / 4 where F is a ...
openaire   +2 more sources

A Note on the Tail Behavior of Randomly Weighted Sums with Convolution-Equivalently Distributed Random Variables

open access: yesAbstract and Applied Analysis, 2013
We investigate the tailed asymptotic behavior of the randomly weighted sums with increments with convolution-equivalent distributions. Our obtained result can be directly applied to a discrete-time insurance risk model with insurance and financial risks ...
Yang Yang, Jun-feng Liu, Yu-lin Zhang
doaj   +1 more source

DATIC: A Data-Aware Time-Domain Computing-in-Memory-Based CNN Processor With Dynamic Channel Skipping and Mapping

open access: yesIEEE Open Journal of the Solid-State Circuits Society, 2022
Due to the low-power priority of analog delay-based computation, time-domain computing-in-memory (TD-CIM) presents a splendid potential for energy-constrained edge and IoT scenarios deploying convolutional neural networks (CNNs).
Jianxun Yang   +8 more
doaj   +1 more source

Approximation on the sphere by weighted Fourier expansions

open access: yesJournal of Applied Mathematics, 2005
The main theme of this paper is the approximation on the sphere by weighted sums of spherical harmonics. We give necessary and sufficient conditions on the weights for convergence in both the continuous and the LP cases.
V. A. Menegatto, A. C. Piantella
doaj   +1 more source

Some Upper Bounds for RKHS Approximation by Bessel Functions

open access: yesAxioms, 2022
A reproducing kernel Hilbert space (RKHS) approximation problem arising from learning theory is investigated. Some K-functionals and moduli of smoothness with respect to RKHSs are defined with Fourier–Bessel series and Fourier–Bessel transforms ...
Mingdang Tian   +2 more
doaj   +1 more source

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