Results 21 to 30 of about 3,074,722 (92)
Data dependence results of a new multistep and S-iterative schemes for contractive-like operators [PDF]
, 2012 In this paper, we prove that convergence of a new iteration and S-iteration can be used to approximate to the fixed points of contractive-like operators.
Gursoy, Faik +2 more
core +1 more source
Sylvester Hadamard matrices revisited
Special Matrices, 2014 In this work we revisited some properties of Sylvester Hadamard matrices of order 2k. Based onlyon the existence of a base from which any Sylvester Hadamard matrix can be constructed, we prove that theirrows (columns) are closed under addition and that ...
Mitrouli M.
doaj +1 more source
Determinants and Inverses of Ppoeplitz and Ppankel matrices
Special Matrices, 2018 In this paper, we consider two kinds of special matrices, which are called Ppoeplitz matrix and Ppankel matrix. The idea of matrix transformation is used to compute the determinants and inverses of the Ppoeplitz matrix and the Ppankel matrix.
Zuo Baishuai, Jiang Zhaolin, Fu Deqian
doaj +1 more source
antiSMASH 5.0: updates to the secondary metabolite genome mining pipeline
Nucleic Acids Res., 2019 Secondary metabolites produced by bacteria and fungi are an important source of antimicrobials and other bioactive compounds. In recent years, genome mining has seen broad applications in identifying and characterizing new compounds as well as in ...
K. Blin +7 more
semanticscholar +1 more source
Algebras of Quasi-Pl\"ucker Coordinates are Koszul [PDF]
, 2017 Motivated by the theory of quasi-determinants, we study non-commutative algebras of quasi-Pl\"ucker coordinates. We prove that these algebras provide new examples of non-homogeneous quadratic Koszul algebras by showing that their quadratic duals have ...
Laugwitz, Robert, Retakh, Vladimir
core +3 more sources
Explicit determinants, inverses and eigenvalues of four band Toeplitz matrices with perturbed rows
Special Matrices, 2019 In this paper, four-band Toeplitz matrices and four-band Hankel matrices of type I and type II with perturbed rows are introduced. Explicit determinants, inverses and eigenvalues for these matrices are derived by using a nice inverse formula of block ...
Zhang Maoyun +2 more
doaj +1 more source
Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China
National Science Review, 2020 To control the spread of the 2019 novel coronavirus (COVID-19), China imposed nationwide restrictions on the movement of its population (lockdown) after the Chinese New Year of 2020, leading to large reductions in economic activities and associated ...
Xin Huang +26 more
semanticscholar +1 more source
Determinantal representations of semi-hyperbolic polynomials [PDF]
, 2016 We prove a generalization of the Hermitian version of the Helton-Vinnikov determinantal representation of hyperbolic polynomials to the class of semi-hyperbolic polynomials, a strictly larger class, as shown by an example.
Knese, Greg
core +3 more sources
Dysbiosis-Induced Secondary Bile Acid Deficiency Promotes Intestinal Inflammation.
Cell Host and Microbe, 2020 Secondary bile acids (SBAs) are derived from primary bile acids (PBAs) in a process reliant on biosynthetic capabilities possessed by few microbes. To evaluate the role of BAs in intestinal inflammation, we performed metabolomic, microbiome, metagenomic,
S. Sinha +14 more
semanticscholar +1 more source
An extension and a generalization of Dedekind's theorem
, 2016 For any given finite abelian group, we give factorizations of the group determinant in the group algebra of any subgroup. The factorizations are an extension of Dedekind's theorem.
Yamaguchi, Naoya
core +2 more sources