Results 11 to 20 of about 1,087,987 (259)

On a linear combination of Zagreb indices [PDF]

open access: yesDiscrete Mathematics Letters, 2023
Summary: The modified first Zagreb connection index of a triangle-free and quadrangle-free graph \(G\) is equal to \(2M_2(G)-M_1(G)\), where \(M_2(G)\) and \(M_1(G)\) are the well-known second and first Zagreb indices of \(G\), respectively. This paper involves the study of the linear combination \(2M_2(G)-M_1(G)\) of \(M_2(G)\) and \(M_1(G)\) when \(G\
Abeer M. Albalahi
doaj   +2 more sources

Linearizing Combinators

open access: yesTheory and Applications of Categories, 2022
In 2017, Bauer, Johnson, Osborne, Riehl, and Tebbe (BJORT) showed that the Abelian functor calculus provides an example of a Cartesian differential category. The definition of a Cartesian differential category is based on a differential combinator which directly formalizes the total derivative from multivariable calculus. However, in the aforementioned
J. Robin B. Cockett   +1 more
openaire   +3 more sources

ON THE LINEAR COMBINANTS OF A BINARY PENCIL [PDF]

open access: yesGlasgow Mathematical Journal, 2009
AbstractLet A, B denote binary forms of order d, and let 2r−1 = (A, B)2r−1 be the sequence of their linear combinants for $1 \le r \le \lfloor\frac{d+1}{2}\rfloor$. It is known that 1, 3 together determine the pencil {A + λ B}λ∈P1 and hence indirectly the higher combinants 2r−1.
Abdesselam, Abdelmalek   +1 more
openaire   +3 more sources

A Stepwise Algorithm for Linearly Combining Biomarkers under Youden Index Maximization

open access: yesMathematics, 2022
Combining multiple biomarkers to provide predictive models with a greater discriminatory ability is a discipline that has received attention in recent years.
Rocío Aznar-Gimeno   +4 more
doaj   +1 more source

The Nullity, Rank, and Invertibility of Linear Combinations of k-Potent Matrices

open access: yesMathematics, 2020
Baksalary et al. (Linear Algebra Appl., doi:10.1016/j.laa.2004.02.025, 2004) investigated the invertibility of a linear combination of idempotent matrices. This result was improved by Koliha et al.
Marina Tošić   +3 more
doaj   +1 more source

Spatial analysis of Environmental Suitability of Shiraz City Using Environmental Suitability Analysis [PDF]

open access: yesجغرافیا و آمایش شهری منطقه‌ای, 2018
Urban Physical development has been the major concern of urban planners during recent years, therefore, better understanding of urban and its development is necessary for sustainable development.
Dr.Mohammadreza Rezaei   +2 more
doaj   +1 more source

Incorporating a New Summary Statistic into the Min–Max Approach: A Min–Max–Median, Min–Max–IQR Combination of Biomarkers for Maximising the Youden Index

open access: yesMathematics, 2021
Linearly combining multiple biomarkers is a common practice that can provide a better diagnostic performance. When the number of biomarkers is sufficiently high, a computational burden problem arises. Liu et al. proposed a distribution-free approach (min–
Rocío Aznar-Gimeno   +4 more
doaj   +1 more source

Verifiable computation scheme of batch matrix multiplication based on triple perturbation and linear combination

open access: yes网络与信息安全学报
With the development of cloud computing and internet of things technology, verifiable computing has been widely used as a new computing technology. While verifiable computing brings convenience to users, there are also security challenges: data privacy ...
Tianpeng ZHANG, Zhiyu REN, Xuehui DU, Haichao WANG
doaj   +5 more sources

Linear Combinations of Isometries

open access: yesRocky Mountain Journal of Mathematics, 2004
Let \(MI\) denote the set of all scalar multiples of all isometries in a Hilbert space \(H\). In this paper, the authors investigate finite-dimensional linear spaces contained in \(MI\) and the commutativity of such spaces. The authors also present an example of two unilateral shifts \(A\), \(B\) of infinite multiplicity such that span\((A,B)\subset MI\
Catepillán, Ximena, Szymanski, Waclaw
openaire   +2 more sources

Optimal Linear Combination of Classifiers

open access: yesCoRR, 2021
14 pages, 7 ...
Georgi Nalbantov, Svetoslav Ivanov
openaire   +2 more sources

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