Results 51 to 60 of about 762,341 (222)
Some remarks on the invariant subspace problem for hyponormal operators
We make some remarks concerning the invariant subspace problem for hyponormal operators. In particular, we bring together various hypotheses that must hold for a hyponormal operator without nontrivial invariant subspaces, and we discuss the existence of ...
Vasile Lauric
doaj +1 more source
Learning Koopman Eigenfunctions and Invariant Subspaces From Data: Symmetric Subspace Decomposition
This article develops data-driven methods to identify eigenfunctions of the Koopman operator associated with a dynamical system and subspaces that are invariant under the operator.
Masih Haseli, J. Cort'es
semanticscholar +1 more source
The Breadth-one $D$-invariant Polynomial Subspace [PDF]
We demonstrate the equivalence of two classes of $D$-invariant polynomial subspaces introduced in [8] and [9], i.e., these two classes of subspaces are different representations of the breadth-one $D$-invariant subspace.
Jiang, Xue, Zhang, Shugong
core
Weak*-closed invariant subspaces and ideals of semigroup algebras on foundation semigroups [PDF]
Let S be a locally compact foundation semigroup with identity and be its semigroup algebra. Let X be a weak*-closed left translation invariant subspace of In this paper, we prove that X is invariantly complemented in if ...
B. Mohammadzadeh
doaj
Initial monomial invariants of holomorphic maps
We study a new biholomorphic invariant of holomorphic maps between domains in different dimensions based on generic initial ideals. We start with the standard generic monomial ideals to find invariants for rational maps of spheres and hyperquadrics ...
Grundmeier, Dusty, Lebl, Jiri
core +1 more source
Noise Characterization: Keeping Reduction Based Per-turbed Quantum Walk Search Optimal
In a recent work by Novo et al. (Sci. Rep. 5, 13304, 2015), the invariant subspace method was applied to the study of continuous-time quantum walk (CTQW).
Chiang Chen-Fu, Hsieh Chang-Yu
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On The Normality Set of Linear Operators
In this paper, the Normality set will be investigated. Then, the study highlights some concepts properties and important results. In addition, it will prove that every operator with normality set has non trivial invariant subspace of .
Laith K. Shaakir, Anas A. Hijab
doaj +1 more source
Cross-View Feature Learning via Structures Unlocking Based on Robust Low-Rank Constraint
The cross-view multimedia are widely existed and attract many attentions in recent years. Nevertheless, it is noted that the phenomenon, that data in different classes from same view are more similar than that in same class from different views, is ...
Ao Li +5 more
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Born-Oppenheimer approximation for an atom in constant magnetic fields
We obtain a reduction scheme for the study of the quantum evolution of an atom in constant magnetic fields using the method developed by Martinez, Nenciu and Sordoni based on the construction of almost invariant subspace. In Martinez-Sordoni \cite{MaSo2}
Ashida, Sohei
core +1 more source
Combinatorics of symplectic invariant tensors [PDF]
An important problem from invariant theory is to describe the subspace of a tensor power of a representation invariant under the action of the group. According to Weyl's classic, the first main (later: 'fundamental') theorem of invariant theory states ...
Martin Rubey, Bruce W. Westbury
doaj +1 more source

