JSTOR Daily

Homogeneous Polynomials and Invariant Subspaces in the Polydisc. II

This is a preview. Log in through your library . Abstract We determine the invariant subspaces M of L2(T2) for which there is a subspace S of M and a positive integer ...
JSTOR Daily

POLYNOMIAL CONDITIONS ON OPERATOR SEMIGROUPS

Journal of Operator Theory, Vol. 53, No. 1 (Winter 2005), pp. 197-220 (24 pages) It is known that if AB – BA is quasinilpotent for every A and B in a multiplicative semigroup 𝒮 of compact operators ...
IEEE

Scalable Approach for Analytic Polynomial Subspace Projection Matrices for a Space-Time Covariance Matrix

Abstract: In sensor array applications, it can be advantageous to project data onto a given signal subspace, for example, to improve the SNR or as part of direction finding algorithms. In the ...
IEEE

A modified Krylov subspace model reduction method based on the Chebyshev polynomials

Abstract: In this paper, we present a modified Krylov subspace model reduction method for linear time invariable systems based on the Chebyshev polynomials. Noting the structure of the Chebyshev ...
Nature

Algebraic Geometry And Tropical Geometry

Algebraic geometry has long provided a deep framework for understanding the solutions of polynomial equations through geometric lenses. In recent years, tropical geometry – a relatively young field – ...