Abstract. Motivated by a result of Ky Fan in 1965, we establish a characterization of a left amenable F-algebra (which includes the group algebra and the Fourier algebra of a locally compact group and ...

Add Yahoo as a preferred source to see more of our stories on Google. Two weeks ago, a modest-looking paper was uploaded to the arXiv preprint server with the unassuming title “On the invariant ...

(MENAFN- The Conversation) Two weeks ago, a modest-looking paper was uploaded to the arXiv preprint server with the unassuming title“On the invariant subspace problem in Hilbert spaces”. The paper is ...

近日，兰州大学信息科学与工程学院阎石教授课题组在复杂系统建模与控制研究中取得新进展。相关成果以“Constrained Common Invariant Subspace and Its Application”为题发表于控制领域国际顶级期刊 IEEE Transactions on Automatic Control，这是兰州大学首次作为第一单位在该期刊 ...

Mathematician Per Enflo, who solved a huge chunk of the 'invariant subspaces problem' decades ago, may have just finished his work. When you purchase through links on our site, we may earn an ...

Two weeks ago, a modest-looking paper was uploaded to the arXiv preprint server with the unassuming title “On the invariant subspace problem in Hilbert spaces”. The paper is just 13 pages long and its ...

Two weeks ago, a modest-looking paper was uploaded to the arXiv preprint server with the unassuming title On the invariant subspace problem in Hilbert spaces. The paper is just 13 pages long and its ...

Krylov subspace methods often exhibit superlinear convergence. We present a general analytic model which describes this superlinear convergence, when it occurs. We take an invariant subspace approach, ...

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Recent advances in the domain have further refined the understanding of Aluthge transforms. Notably, investigations into the generalized spherical Aluthge transform have determined its spectral ...

Would a basketball spinning on a fingertip behave the same way in an infinite number of dimensions? The question has flummoxed mathematicians for 80 years, but now it looks as if the answer is yes – a ...