Results 91 to 100 of about 26,944 (191)

On the minimum number of eigenvalues of matrices associated with cographs

8 ...
Allem, Luiz Emilio, Fürer, Martin, Hoppen, Carlos, Sibemberg, Lucas Siviero, Trevisan, Vilmar   +4 more
openaire   +2 more sources

On the minimum number of eigenvalues of trees of diameter seven

Linear and Multilinear Algebra
The underlying graph $G$ of a symmetric matrix $M=(m_{ij})\in \mathbb{R}^{n\times n}$ is the graph with vertex set $\{v_1,\ldots,v_n\}$ such that a pair $\{v_i,v_j\}$ with $i\neq j$ is an edge if and only if $m_{ij}\neq 0$. Given a graph $G$, let $q(G)$ be the minimum number of distinct eigenvalues in a symmetric matrix whose underlying graph is $G$. A
Allem, Luiz Emilio, Hoppen, Carlos, Sibemberg, Lucas Siviero   +2 more
openaire   +2 more sources

A note on quasilinear elliptic eigenvalue problems

Electronic Journal of Differential Equations, 1999
We study an eigenvalue problem by a non-smooth critical point theory. Under general assumptions, we prove the existence of at least one solution as a minimum of a constrained energy functional. We apply some results on critical point theory with symmetry
Gianni Arioli
doaj  

The Structure of Field‐Aligned Current Systems as Inferred From the Multiscale Minimum Variance Analysis

Earth and Space Science
Auroral field‐aligned currents (FACs) have an intrinsic complexity caused by the superposition of contributions from a broad spectrum of scales and diversity of locations.
Costel Bunescu
doaj   +1 more source

Robust and Minimum Norm Pole Assignment with Periodic State Feedback

, 2000
A computational approach is proposed to solve the minimum norm or robust pole assignment problem for linear periodic discrete-time systems. The proposed approach uses a periodic Sylvester-equation-based parametrization of the periodic pole assignment ...
Varga, A.
core  

Eigen-guided transformer: A data-driven approach for chronic kidney disease forecasting. [PDF]

PLoS One
Saeed F, Aldera S.
europepmc   +1 more source

Power Laws in Empirical Eigenvalue Spectra. [PDF]

Entropy (Basel)
Liu B, Chen YY, Li MS, Morgan VT, Abdelaleem E, Sederberg A.   +5 more
europepmc   +1 more source

An Adaptive Detection Algorithm for Non-Uniform Sea Clutter Background Targets Based on Iterative Weighting and Sample Purification. [PDF]

Sensors (Basel)
Su H, Zhang L, Zhao C, Li K.
europepmc   +1 more source

On the Minimum Eigenvalues of the Laplacians in Riemannian Manifolds

On the Minimum Eigenvalues of the Laplacians in Riemannian Manifolds
application ...
openaire  

Guiding Peptide Kinetics via Collective-Variable Tuning of Free-Energy Barriers. [PDF]

J Chem Theory Comput
Zhilkin A, Medaparambath M, Mendels D.
europepmc   +1 more source