(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 ...

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 ...

Here the torus $${T}$$ means the unit circle $${\left\{ z\in \mathbb{C}:\left| z \right|=1 \right\}}$$ or the interval $${\left[ 0,2\pi \right)}$$, synonymously. We ...

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 ...

前回reduce を簡約すると言ったが、今回は縮小するという日本語をあてることにした。 🔹 不変部分空間（Invariant Subspace） 線形作用素 T に対して、部分空間 M が不変部分空間であるとは、任意の x∈M に対して T(x)∈M が成り立つことを意味します。 つまり ...

Abstract: We present an algorithmic framework for the identification of candidate invariant subspaces for switched linear systems. Namely, the framework allows to compute an orthonormal basis in which ...

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 ...

Abstract: A decoupled method is proposed to deal with time domain simulation for power system dynamic analysis. Traditionally there are two main categories of numerical integration methods: explicit ...