Results 11 to 20 of about 264,184 (301)

Fano schemes for generic sums of products of linear forms [PDF]

open access: yesJournal of Algebra and Its Applications, 2019
We study the Fano scheme of [Formula: see text]-planes contained in the hypersurface cut out by a generic sum of products of linear forms. In particular, we show that under certain hypotheses, linear subspaces of sufficiently high dimension must be contained in a coordinate hyperplane.
Ilten, Nathan Owen, Süß, Hendrik
openaire   +6 more sources

COMPUTING CODIMENSIONS AND GENERIC CANONICAL FORMS FOR GENERALIZED MATRIX PRODUCTS [PDF]

open access: yes, 2011
A generalized matrix product can be formally written as A sp p A sp−1 p−1 · · ·A s2 2 A s1 1, where si ∈ {−1,+1} and (A1,..., Ap) is a tuple of (possibly rectangular) matrices of suitable dimensions.
Kressner, Daniel   +5 more
core   +3 more sources

Dissipativity Analysis for Neural Networks With Time-Varying Delays Based on Augmented Second-Order Delay-Product-Type Functionals

open access: yesIEEE Access, 2020
This paper investigates the problem of dissipativity of a class of neural networks with timevarying delays. First, a suitable augmented Lyapunov functional containing the second-order delay-product term is constructed.
Hui-Chao Lin, Wei Wang, Hui-Qin Xiao
doaj   +1 more source

Contact and almost contact structures on the real extension of the Lobachevsky plane

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2021
In this article, we propose a group model G of a real extension of the Lobachevsky plane H2 × R . The group G is a Lie group of special-form matrices and a subgroup of the general linear group GL(3, R).
V.I. Pan’zhenskii, A.O. Rastrepina
doaj   +1 more source

Coherent state representation of squeezing operator and its applications

open access: yesResults in Physics, 2022
In a previous paper Zhan et al. (2022) proposed the coherent state representation for linear operator, which shows a beautiful theoretical value. Inspired by the work, we further extend it to the nonlinear case, including single- and two-mode squeezing ...
Xiaojian Qiu   +3 more
doaj   +1 more source

On ideals generated by a-fold products of linear forms [PDF]

open access: yesJournal of Commutative Algebra, 2021
Let $\mathbb K$ be a field of characteristic 0. Given $n$ linear forms in $R=\mathbb K[x_1,\ldots,x_k]$, with no two proportional, in one of our main results we show that the ideal $I\subset R$ generated by all $(n-2)$-fold products of these linear forms has linear graded free resolution.
openaire   +2 more sources

On the real linear polarization constant problem [PDF]

open access: yes, 2006
The present paper deals with lower bounds for the norm of products of linear forms. It has been proved by J. Arias-de-Reyna [2], that the so-called n(th) linear polarization constant c(n)(C-n) is n(n/2), for arbitrary n is an element of N. The same value
Matolcsi, Máté   +3 more
core   +1 more source

The evaluation of linear forms [PDF]

open access: yes, 1941
This presentation deals with the evaluation and transformation of linear forms. Especial emphasis is given to implicit methods in which it is not necessary to find the explicit values, x i . The relation of the Aitken triple product matrix CA −1 B to the
P. Dwyer, Dwyer, Paul S. (Paul Sumner)
core   +1 more source

Maximizing products of linear forms, and the permanent of positive semidefinite matrices [PDF]

open access: yes, 2022
We study the convex relaxation of a polynomial optimization problem, maximizing a product of linear forms over the complex sphere. We show that this convex program is also a relaxation of the permanent of Hermitian positive semidefinite (HPSD) matrices ...
Yuan, Chenyang, Parrilo, Pablo A.
core   +1 more source

Prosilience trajectories of phoenix regions: a narrative on intelligent transformation of old mining areas [PDF]

open access: yesEastern Journal of European Studies, 2021
This paper departs from the regional resilience concept - as part of a broad strand of literature on non-linear dynamic systems in a space-economy - and introduces the notion of prosilience to highlight the policy challenge of developing radically new ...
Patricio AROCA   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy