Results 21 to 30 of about 957 (247)

Algorithms for orbit closure separation for invariants and semi-invariants of matrices [PDF]

open access: yesAlgebra & Number Theory, 2020
We consider two group actions on $m$-tuples of $n \times n$ matrices. The first is simultaneous conjugation by $\operatorname{GL}_n$ and the second is the left-right action of $\operatorname{SL}_n \times \operatorname{SL}_n$. We give efficient algorithms to decide if the orbit closures of two points intersect.
Derksen, Harm, Makam, Visu
openaire   +4 more sources

SEPARATING INVARIANTS FOR MODULAR P-GROUPS AND GROUPS ACTING DIAGONALLY [PDF]

open access: yes, 2009
We study separating algebras for rings of invariants of finite groups. We describe a separating subalgebra for invariants of p-groups in characteristic p using only transfers and norms. Also we give an explicit construction of a finite separating set for
Neusel, Mara D., Sezer, Muefit
core   +4 more sources

Learning invariant features for speech separation [PDF]

open access: yes2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013
Recent studies on speech separation show that the ideal binary mask (IBM) substantially improves speech intelligibility in noise. Supervised learning can be used to effectively estimate the IBM. However, supervised learning has trouble dealing with the situations where the probabilistic properties of the training data and the test data do not match ...
Kun Han, DeLiang Wang
openaire   +1 more source

Minimal generating and separating sets for O(3)-invariants of several matrices [PDF]

open access: yes, 2023
Given an algebra $F[H]^G$ of polynomial invariants of an action of the group $G$ over the vector space $H$, a subset $S$ of $F[H]^G$ is called separating if $S$ separates all orbits that can be separated by $F[H]^G$. A minimal separating set is found for
Lopatin, Artem A.   +1 more
core   +2 more sources

THE SYNERGETIC SYNTHESIS OF VECTOR CONTROL SYSTEM FOR SEPARATION OF STAGES OF AEROSPACE SYSTEM

open access: yesСовременная наука и инновации, 2022
The synthesis of autopilot for separating stages of aerospace complex with the upper position of the upper stage on a launching aircraft with simultaneous disruption of all the junctions between them is presented. Method of synthesis of analytical design
Anatoliy Arkad’evich Kolesnikov   +3 more
doaj  

More on the cardinality of a topological space

open access: yesApplied General Topology, 2018
In this paper we continue to investigate the impact that various separation axioms and covering properties have onto the cardinality of topological spaces. Many authors have been working in that field.
M. Bonanzinga   +3 more
doaj   +1 more source

On an invariance principle for phase separation lines☆ [PDF]

open access: yesAnnales de l'Institut Henri Poincare (B) Probability and Statistics, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Greenberg, Lev, Ioffe, Dmitry
openaire   +2 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

The separating variety for matrix semi-invariants [PDF]

open access: yes, 2023
Let G be a linear algebraic group acting linearly on a vector space (or more generally, an affine variety) V, and let k[V]^G be the corresponding algebra of invariant polynomial functions.
Elmer, J.
core   +1 more source

Separating invariants for arbitrary linear actions of the additive group [PDF]

open access: yes, 2014
We consider an arbitrary representation of the additive group G_a over a field of characteristic zero and give an explicit description of a finite separating set in the corresponding ring of ...
Dufresne, E., Elmer, J., Sezer, M.
core   +4 more sources

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