Generalising the Scattered Property of Subspaces

نویسندگان

چکیده

Let V be an r-dimensional $${\mathbb{F}_{{q^n}}}$$ -vector space. We call $${\mathbb{F}_{q}}$$ -subspace U of h-scattered if meets the h-dimensional -subspaces in dimension at most h. In 2000 Blokhuis and Lavrauw proved that $${\dim_{\mathbb{F}_{q}}}$$ ? rn/2 when is 1-scattered. Sub-spaces attaining this bound have been investigated intensively because their relations with projective two-weight codes strongly regular graphs. MRD-codes a maximum idealiser also linked to rn/2-dimensional 1-scattered subspaces n-dimensional (r ? 1)-scattered subspaces. paper we prove upper rn/(h + 1) for subspaces, h > 1, construct examples dimension. study intersection numbers hyperplanes, introduce duality relation among them, equivalence problem corresponding linear sets.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Pe lczyński Property for Tight Subspaces

We show that if X is a tight subspace of C(K) then X has the Pe lczyński property and X is weakly sequentially complete. We apply this result to the space U of uniformly convergent Taylor series on the unit circle and using a minimal amount of Fourier theory prove that U has the Pe lczyński property and U is weakly sequentially complete. Using separate methods, we prove U and U have the Dunford...

متن کامل

Positive Bases in Ordered Subspaces with the Riesz Decomposition Property

In this article we suppose that E is an ordered Banach space the positive cone of which is defined by a countable familyF={fi|i ∈ N} of positive continuous linear functionals of E, i.e. E+ = {x ∈ E | fi(x) ≥ 0, for each i} and we study the existence of positive (Schauder) bases in the ordered subspaces X of E with the Riesz decomposition property. So we consider the elements x of E as sequences...

متن کامل

Rigorous Restricted Isometry Property of Low-Dimensional Subspaces

Dimensionality reduction is in demand to reduce the complexity of solving largescale problems with data lying in latent low-dimensional structures in machine learning and computer version. Motivated by such need, in this work we study the Restricted Isometry Property (RIP) of Gaussian random projections for low-dimensional subspaces in R , and rigorously prove that the projection Frobenius norm...

متن کامل

Generalising Conservativity

A constraint on functions from sets and relations to sets is studied. This constraint is a generalisation of the constraint of conservativity known from the study of generalised quantifiers in natural languages. It is suggested that this generalised constraint constitutes a semantic universal.

متن کامل

Bishop ’ S Property ( Β ) , Hypercyclicity and Hyperinvariant Subspaces

The question whether every operator on H has an hyperinvariant subspace is one of the most difficult problems in operator theory. The purpose of this paper is to make a beginning on the hyperinvariant subspace problems for another class of operators closely related to the normal operators namely, the class of k -quasi-class A operators. A necessary and sufficient condition for the hypercyclicit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Combinatorica

سال: 2021

ISSN: ['0209-9683', '1439-6912']

DOI: https://doi.org/10.1007/s00493-020-4347-y