Results 101 to 110 of about 65,242 (175)

Canonical models for invariant subspaces [PDF]

Pacific Journal of Mathematics, 1980
openaire   +3 more sources

Canonical forms, higher rank numerical range, convexity, totally isotropic subspace, matrix equations

, 2007
Results on matrix canonical forms are used to give a complete description of the higher rank numerical range of matrices arising from the study of quantum error correction. It is shown that the set can be obtained as the intersection of closed half planes (of complex numbers). As a result, it is always a convex set in $\mathcal C$. Moreover, the higher
Li, Chi-Kwong, Sze, Nung-Sing
openaire   +2 more sources

Collective Subspace and Canonical System with Constraints [PDF]

Progress of Theoretical Physics, 1980
openaire   +1 more source

Canonical forms for pairs of matrices associated with Lagrangian and Dirac subspaces

We derive the canonical forms for a pair of $n\times n$ complex matrices $(E,Q)$ under transformations $(E,Q) \rightarrow (UEV,U^{-T}QV)$, and $(E,Q) \rightarrow (UEV,U^{-*}QV)$, where $U$ and $V$ are nonsingular complex matrices. We, in particular, consider the special cases of $E^TQ$ and $E^*Q$ being (skew-)symmetric and (skew-)Hermitian ...
Das, Sweta, Dmytryshyn, Andrii, Mehrmann, Volker   +2 more
openaire   +2 more sources

Selective direct influence of motor cortex on limb muscle activity during naturalistic climbing in mice. [PDF]

Nat Neurosci
Koh N, Ma Z, Sarup A, Kristl AC, Agrios M, Young M, Miri A.   +6 more
europepmc   +1 more source

Hippocampal-Prefrontal Communication Subspaces Align with Behavioral and Network Patterns in a Spatial Memory Task. [PDF]

eNeuro
Young RA, Shin JD, Guo Z, Jadhav SP.
europepmc   +1 more source

Coordinated multi-level adaptations across neocortical areas during task learning. [PDF]

Nat Commun
Han S, Helmchen F.
europepmc   +1 more source

Lagrangian Relations and Quantum L ∞ Algebras. [PDF]

Commun Math Phys
Jurčo B, Pulmann J, Zika M.
europepmc   +1 more source

Coordinated representations for naturalistic memory encoding and retrieval in hippocampal neural subspaces. [PDF]

Nat Commun
Kwon D, Kim J, Yoo SBM, Shim WM.
europepmc   +1 more source

Visualizing Three-Qubit Entanglement. [PDF]

Entropy (Basel)
Benedito A, Sierra G.
europepmc   +1 more source