نتایج جستجو برای: نمودار skew t
تعداد نتایج: 719196 فیلتر نتایج به سال:
let $d$ be a digraph with skew-adjacency matrix $s(d)$. the skew energy of $d$ is defined as the sum of the norms of all eigenvalues of $s(d)$. two digraphs are said to be skew equienergetic if their skew energies are equal. we establish an expression for the characteristic polynomial of the skew adjacency matrix of the join of two digraphs, and for the respective skew energ...
for a finite field $mathbb{f}_q$, the bivariate skew polynomial ring $mathbb{f}_q[x,y;rho,theta]$ has been used to study codes cite{xh}. in this paper, we give some characterizations of the ring $r[x,y;rho,theta]$, where $r$ is a commutative ring. we investigate 2-d skew $(lambda_1,lambda_2)$-constacyclic codes in the ring $r[x,y;rho,theta]/langle x^l-lambda_1,y^s-lambda_2rangle_{mathit{l}}.$ a...
for solving large sparse non-hermitian positive definite linear equations, bai et al. proposed the hermitian and skew-hermitian splitting methods (hss). they recently generalized this technique to the normal and skew-hermitian splitting methods (nss). in this paper, we present an accelerated normal and skew-hermitian splitting methods (anss) which involve two parameters for the nss iteration. w...
let $g$ be a simple graph with an orientation $sigma$, which assigns to each edge a direction so that $g^sigma$ becomes a directed graph. $g$ is said to be the underlying graph of the directed graph $g^sigma$. in this paper, we define a weighted skew adjacency matrix with rand'c weight, the skew randi'c matrix ${bf r_s}(g^sigma)$, of $g^sigma$ as the real skew symmetric mat...
Often in biomedical studies, the routine use of linear mixed-effects models (based on Gaussian assumptions) can be questionable when the longitudinal responses are skewed in nature. Skew-normal/elliptical models are widely used in those situations. Often, those skewed responses might also be subjected to some upper and lower quantification limits (QLs; viz., longitudinal viral-load measures in ...
Despite the scrutiny that has been directed for years at the yeast genome, relatively little is known about the impact of replication on the substitution dynamics in Saccharomyces cerevisiae. Here, we show that the mutation rate increases with the replication timing by more than 30% between the earliest and the latest replicating regions. In addition, we found a mutational asymmetry associated ...
In this paper, we give two explicit examples of unbounded linear maximal monotone operators. The first unbounded linear maximal monotone operator S on l is skew. We show its domain is a proper subset of the domain of its adjoint S∗, and −S∗ is not maximal monotone. This gives a negative answer to a recent question posed by Svaiter. The second unbounded linear maximal monotone operator is the in...
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