SVM‐Jacobi for fitting linear combinations of exponential distributions with applications to finance and insurance
Sign Up to like & getrecommendations! Published in 2024 at "Applied Stochastic Models in Business and Industry"
DOI: 10.1002/asmb.2885
Abstract: We propose a method called SVM‐Jacobi to approximate probability distributions by linear combinations of exponential distributions, associated with a comprehensive asymptotic analysis. In multivariate cases, the multivariate distribution is approximated by linear combinations of products… read more here.
Keywords: finance insurance; linear combinations; finance; exponential distributions ... See more keywords
On linear combinations of products of consecutive integers
Sign Up to like & getrecommendations! Published in 2020 at "Acta Mathematica Hungarica"
DOI: 10.1007/s10474-020-01083-w
Abstract: We investigate Diophantine problems concerning linear combinations of polynomials of the shape $$a_0 x+a_1x(x+1)+ a_2x(x+1)(x+2)+ \cdots + a_n x(x+1)\ldots (x+n)$$ a 0 x + a 1 x ( x + 1 ) + a 2… read more here.
Keywords: linear combinations; combinations products; products consecutive; consecutive integers ... See more keywords
Rado equations solved by linear combinations of idempotent ultrafilters
Sign Up to like & getrecommendations! Published in 2022 at "Topology and its Applications"
DOI: 10.1016/j.topol.2021.107897
Abstract: We characterize the solvability of Rado equations inside linear combinations $a_{1}\mathcal{U}\oplus\dots\oplus a_{n}\mathcal{U}$ of idempotent ultrafilters $\mathcal{U}\in\beta\mathbb{Z}$ by exploiting known relations between such combinations and strings of integers. This generalizes a partial characterization obtained by Mauro… read more here.
Keywords: linear combinations; rado equations; solved linear; idempotent ultrafilters ... See more keywords
Linear Combinations of Cluster Mean-Field States Applied to Spin Systems.
Sign Up to like & getrecommendations! Published in 2024 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.4c00171
Abstract: We present an innovative cluster-based method employing linear combinations of diverse cluster mean-field states and apply it to describe the ground state of strongly correlated spin systems. In cluster mean-field theory, the ground state wave… read more here.
Keywords: linear combinations; spin systems; field states; mean field ... See more keywords
Upper and lower bounds on the variances of linear combinations of the kth records
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DOI: 10.1080/02331888.2017.1343828
Abstract: ABSTRACT We describe a method of determining upper bounds on the variances of linear combinations of the kth records values from i.i.d. sequences, expressed in terms of variances of parent distributions. We also present conditions… read more here.
Keywords: linear combinations; kth records; upper lower; bounds variances ... See more keywords
Quadrature coherence scale of linear combinations of Gaussian functions in phase space
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.012408
Abstract: The quadrature coherence scale (QCS) is a recently introduced measure that was shown to be an efficient witness of nonclassicality. It takes a simple form for pure and Gaussian states, but a general expression for… read more here.
Keywords: coherence scale; quadrature coherence; linear combinations;
More Functions With Three-Valued Walsh Transform From Linear Combinations
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2019.2894407
Abstract: Recently, we obtained three kinds of monomial functions, whose Walsh transforms have only three values. Based on the work, we present more such functions by considering linear combinations of some monomial functions. As applications, we… read more here.
Keywords: linear combinations; valued walsh; three valued; functions three ... See more keywords
Linear combinations of prime powers in binary recurrence sequences
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Number Theory"
DOI: 10.1142/s1793042117500166
Abstract: We give finiteness results concerning terms of linear recurrence sequences having a representation as a linear combination, with fixed coefficients, of powers of fixed primes. On one hand, under certain conditions, we give effective bounds… read more here.
Keywords: linear combinations; recurrence; recurrence sequences; combinations prime ... See more keywords
Restoring the Duality between Principal Components of a Distance Matrix and Linear Combinations of Predictors, with Application to Studies of the Microbiome
Sign Up to like & getrecommendations! Published in 2017 at "PLoS ONE"
DOI: 10.1371/journal.pone.0168131
Abstract: Appreciation of the importance of the microbiome is increasing, as sequencing technology has made it possible to ascertain the microbial content of a variety of samples. Studies that sequence the 16S rRNA gene, ubiquitous in… read more here.
Keywords: linear combinations; distance matrix; data matrix; distance ... See more keywords
On Quadraticity of Linear Combinations of Two Essentially Cubic Matrices That Commute
Sign Up to like & getrecommendations! Published in 2025 at "Axioms"
DOI: 10.3390/axioms14110848
Abstract: This work presents a complete and definitive characterization of all cases where every linear combination of two commuting essentially cubic matrices results in a quadratic matrix, thereby extending existing contributions in the literature. To facilitate… read more here.
Keywords: linear combinations; two essentially; essentially cubic; cubic matrices ... See more keywords
On Approximation by Linear Combinations of Modified Summation Operators of Integral Type in Orlicz Spaces
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DOI: 10.3390/math7010006
Abstract: In this paper, the authors introduce the Orlicz spaces corresponding to the Young function and, by virtue of the equivalent theorem between the modified K-functional and modulus of smoothness, establish the direct, inverse, and equivalent… read more here.
Keywords: linear combinations; operators integral; summation operators; orlicz spaces ... See more keywords