Results 41 to 50 of about 193,463 (332)

Estimation of the infinitesimal generator by square-root approximation [PDF]

, 2017
For the analysis of molecular processes, the estimation of time-scales, i.e., transition rates, is very important. Estimating the transition rates between molecular conformations is -- from a mathematical point of view -- an invariant subspace projection
Donati, Luca, Heida, Martin, Keller, Bettina G., Weber, Marcus   +3 more
core   +3 more sources

On Invariant Graph Subspaces [PDF]

Integral Equations and Operator Theory, 2016
In this paper we discuss the problem of decomposition for unbounded $2\times 2$ operator matrices by a pair of complementary invariant graph subspaces. Under mild additional assumptions, we show that such a pair of subspaces decomposes the operator matrix if and only if its domain is invariant for the angular operators associated with the graphs.
Makarov, Konstantin A., Schmitz, Stephan, Seelmann, Albrecht   +2 more
openaire   +2 more sources

Invariant subspace problem and compact operators on non-Archimedean Banach spaces

Extracta Mathematicae, 2020
In this paper, the invariant Subspace Problem is studied for the class of non-Archimedean compact operators on an infinite-dimensional Banach space E over a nontrivial complete non-Archimedean valued field K.
M. Babahmed, Azzedine El asri
doaj  

Invariant Subspace and Classification of Soliton Solutions of the Coupled Nonlinear Fokas-Liu System

Frontiers in Physics, 2019
In this work, the coupled nonlinear Fokas-Liu system which is a special type of KdV equation is studied using the invariant subspace method (ISM). The method determines an invariant subspace and construct the exact solutions of the nonlinear partial ...
Aliyu Isa Aliyu, Yongjin Li, Dumitru Baleanu, Dumitru Baleanu   +3 more
doaj   +1 more source

Permutation-invariant codes encoding more than one qubit

, 2016
A permutation-invariant code on m qubits is a subspace of the symmetric subspace of the m qubits. We derive permutation-invariant codes that can encode an increasing amount of quantum information while suppressing leading order spontaneous decay errors ...
Fitzsimons, Joseph, Ouyang, Yingkai
core   +1 more source

The Invariant Subspace Problem for Separable Hilbert Spaces

Axioms
In this paper, we prove that every bounded linear operator on a separable Hilbert space has a non-trivial invariant subspace. This answers the well-known invariant subspace problem.
Roshdi Khalil, Abdelrahman Yousef, Waseem Ghazi Alshanti, Ma’mon Abu Hammad   +3 more
doaj   +1 more source

Initial monomial invariants of holomorphic maps

, 2015
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

In--out intermittency in PDE and ODE models [PDF]

, 2001
We find concrete evidence for a recently discovered form of intermittency, referred to as in--out intermittency, in both PDE and ODE models of mean field dynamos.
Andrew Tworkowski, Ashwin P., Barreto E., Brandenburg A., Brandenburg A., Brooke J. M., Brooke J. M., Brooke J. M., Covas E., Covas E., Eurico Covas, Feudel F., John M. Brooke, Kitchatinov L. L., Kitchatinov L. L., Knobloch E., Knobloch E., Küker M., Ossendrijver M. A. J. H., Ossendrijver M. A. J. H., Peter Ashwin, Reza Tavakol, Schmalz S., Schmitt D., Sokoloff D., Spiegel E., Tavakol R., Tavakol R., Tavakol R., Tobias S. M., Tobias S. M., Tobias S. M., Tobias S. M., Tobias S. M., Tobias S. M., Torkelsson U., Tworkowski A., Weiss N. O., Zhang Y.   +38 more
core   +2 more sources

Energy preserving evolutions over Bosonic systems [PDF]

Quantum
The exponential convergence to invariant subspaces of quantum Markov semigroups plays a crucial role in quantum information theory. One such example is in bosonic error correction schemes, where dissipation is used to drive states back to the code-space –
Paul Gondolf, Tim Möbus, Cambyse Rouzé
doaj   +1 more source

Intersection theory and the Horn inequalities for invariant subspaces [PDF]

, 2015
We provide a direct, intersection theoretic, argument that the Jordan models of an operator of class C_{0}, of its restriction to an invariant subspace, and of its compression to the orthogonal complement, satisfy a multiplicative form of the Horn ...
Bercovici, Hari, Li, Wing Suet
core   +2 more sources