unitary similarity(T + H)-matrixcentrosymmetric matrixThe following problem is discussed: what are unitary n 脳 n matrices U that map the linear space of ( T + H )-matrices into itself by similarity transformations? Analogous problems for the spaces of Toeplitz and Hankel matrices were solved ...
Fischle. A logarithmic minimization property of the unitary polar factor in the spectral norm and the Frobenius matrix norm. SIAM Journal on Matrix Analysis and Applications, 35 (3):1132-1154, 2014.P. Neff, Y. Nakatsukasa, and A. Fischle, A logarithmic minimization property of the unitary ...
摘要: The property of generalized unitary matrix is developed and the relations between the generalized unitary matrix and the generalized Hermite matrix is studied. 关键词: Generalized unitary matrix Generalized Hermite matrix Generalized oblique Hermite mayrix 被引量: 4 年份: 2004 收藏...
We give a general theory of matrix elements (ME's) of the unitary irreducible representations (UIR's) of linear semisimple Lie groups and of reductive Lie ... AU Klimyk,AM Gavrilik - 《Journal of Mathematical Physics》 被引量: 59发表: 1979年 ...
In the present paper, we first study the wandering subspace property of the shift operator on theI_{a}type zero based invariant subspaces of the weighted Bergman spacesL_{a}^{2}(dA_{n})(n=0,2)via the spectrum of some Toeplitz operators on the Hardy spaceH^{2}. Second, we give ex...
The extension property is equivalent to the property that given any x in B(H), the norm closure of the convex hull of the set {UXV*I u unitary in N}(notation: K(x) =W{uxv* 1OEU(N)}) has a nonvoid intersection with the commutant N' (cf. [S, 2.41).There is a more ...
We extend the theory of matrix power means to arbitrary operator means in the s... M Pálfia - 《Mathematics》 被引量: 1发表: 2013年 On a General Probabilistic Representation Formula for Semigroups In this paper we present a general probabilistic representation theorem fo!" semigroups of ....
Let T be a completely nonunitary contraction on an n-dimensional Hilbert space. Suppose that T has no eigenvalue of modulus one and . The well-known Poncelet property for numerical range W(T) shows that for any point λ on the unit circle there exists a unique (n+1)-gon, having λ ...
Lemma 1.1 There is a constant M (k) < 11.22k with the following property: Let (ρ, H) be a unitary representation of the group Gd,k = SLd(Rk). Let v ∈ H be a unit vector such that ||ρ(g)v − v|| < ǫ for g ∈ Sd,k. Then for every elementary matrix g = Id +...
Instead of ridiculing these special effects, the texts in this chapter show how they help to congeal the Anglo Saxon's "fleshly matrix" of spirit, matter, and personhood. In chapter 3, I focus on Charles Brockden Brown's important novel Arthur Mervyn (1799). Brown's text exposes the ...