Results 21 to 30 of about 23,944 (147)

Characteristic free description of semi-invariants of $2\times 2$ matrices [PDF]

open access: yes, 2019
A minimal homogeneous generating system of the algebra of semi-invariants of tuples of two-by-two matrices over an infinite field of characteristic two or over the ring of integers is given.
Domokos, M.
core   +3 more sources

A note on a separating system of rational invariants for finite dimensional generic algebras [PDF]

open access: yes, 2017
The paper deals with a construction of a separating system of rational invariants for finite dimensional generic algebras. In the process of dealing an approach to a rough classification of finite dimensional algebras is offered by attaching them some ...
Bekbaev, U.
core   +2 more sources

Separating invariants for multisymmetric polynomials

open access: yesProceedings of the American Mathematical Society, 2020
12 pages, accepted for publication in Proc ...
Lopatin, Artem, Reimers, Fabian
openaire   +3 more sources

Holonomy and Skyrme's model [PDF]

open access: yes, 2002
In this paper we consider two generalizations of the Skyrme model. One is a variational problem for maps from a compact three-manifold to a compact Lie group. The other is a variational problem for flat connections. We describe the path components of the
Auckly, Dave, Kapitanski, Lev
core   +1 more source

Resolution-invariant separable ARMA modeling of images [PDF]

open access: yes2011 18th IEEE International Conference on Image Processing, 2011
We suggest a continuous-domain stochastic modeling of images that is invariant to spatial resolution. Specifically, we are proposing an estimator that is calibrated with respect to the sampling step, and that can potentially handle aliased data. Motivated by Markov random fields, we assume a continuous-domain ARMA model and suggest an algorithm for ...
Aurelien Bourquard   +2 more
openaire   +1 more source

Weak separation, positivity and extremal Yangian invariants [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract We classify all positive n-particle NkMHV Yangian invariants in $$ \mathcal{N} $$ N = 4 YangMills theory with n = 5k, which we call extremal because none exist for n > 5k.
Lippstreu, Luke   +3 more
openaire   +4 more sources

On Invariants for ω 1 -Separable Groups

open access: yesTransactions of the American Mathematical Society, 1995
We study the classification of omega_1-separable groups using Ehrenfeucht-Fraisse games and prove a strong classification result assuming PFA, and a strong non-structure theorem assuming diamond.
Eklof, Paul C.   +2 more
openaire   +3 more sources

On Permutation Invariant Training For Speech Source Separation [PDF]

open access: yesICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021
In proceedings of ...
Liu, Xiaoyu, Pons, Jordi
openaire   +2 more sources

Separating invariants

open access: yesJournal of Symbolic Computation, 2009
The author defines a general notion of a separating subset. Explicitly, let \(X\) and \(K\) be sets (\(K\) will be a field or an integral domain in most situations), and let \(K^X\) be the set of all functions from \(X\) to \(K\). Let \(F\) be any subset of \(K^X\). A subset \(S\) of \(F\) is called an \(F\)-separating set if, for any \(x,y \in X\), if
openaire   +2 more sources

Moduli Spaces of Higher Spin Klein Surfaces [PDF]

open access: yes, 2016
We study the connected components of the space of higher spin bundles on hyperbolic Klein surfaces. A Klein surface is a generalisation of a Riemann surface to the case of non-orientable surfaces or surfaces with boundary.
Natanzon, Sergey, Pratoussevitch, Anna
core   +2 more sources

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