(3) The Extension Theorem (Theorem 7.6) describes the extension of a fundamental derivation of ak-domainBtoB[t] by an invariant function. The Classification Theorem is used to describe three-dimensional UFDs which admit a certain kind ofSL2(k) action (Theorem 6.2). This description is used ...
Let k be an algebraically closed field of characteristic zero and B a factorial affine k -domain equipped with a locally nilpotent derivation δ . We investigate B when there exists an element z ∈ B such that δ (z) = α p for p ≥ 1 and a prime element α of A = Ker δ . ...
Facebook Twitter Google Share on Facebook PWA (redirected fromPiecewise Affine) Category filter: AcronymDefinition PWAPerson/People With AIDS PWAProgressive Web App PWAProgressive Web Application(software) PWAPublic Works Agency PWAProject Web Access(Microsoft Project Server 2003) ...
The prime spectrum of a two-dimensional affine domainLet A be a two-dimensional domain which is finitely generated as an algebra over a field k. The main theorem of this paper is that the partially ordered sets Spec A and Spec [X] are isomorphic if and only if k is contained in the ...
Sub Domain:填写保留成功的二级子域名 点击更新(注意,点击一次更新即可,不需要重复提交) 更新完成后,打开在线隧道列表,此时可以看到公网地址已经发生变化,地址名称也变成了固定的二级子域名名称的域名 最后,我们使用固定的公网地址访问,可以看到访问成功,这样一个固定且永久不变的公网地址就设置好了...
We propose a novel image denoising strategy based on an enhanced sparse representation in transform domain. The enhancement of the sparsity is achieved by ... K Dabov,A Foi,V Katkovnik,... - 《IEEE Transactions on Image Processing》 被引量: 5246发表: 2007年 FAD, a Powerful and Simple Data...
We describe surface roughness as a random profile with finite domain, power-law power spectrum. These profiles have recently been shown to exhibit approxim... OI Yordanov,K Ivanova - 《Surface Science》 被引量: 35发表: 1995年 Some Distinctions Between Self-Similar and Self-Affine Estimates of...
It is known that a morphism f:X\to Y between two affine closed varieties X\subsetA_n^k,Y\subsetA_m^k has the following form: f(x_1,?,x_n)=(f_1(x_1,?,x_n),?,f_m(x_1,?,x_n))\inY, where f_1,?,f_m\in k[x_1,?,x_n]. Does it exists a similar representation...
Projections and projection matrices/operatorsplay a crucial part in machine learning, signal processing and optimization in general; after all, a projection corresponds to a minimization task, when the loss is interpreted as a “distance.” Given anl×k,k<lmatrix,A, with column vectors,ai,i=1,...
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