linear-algebra


Eigenvalues of large symmetric matrices


When I try to compute the eigenvalues of the adjacency matrix of a very large graph I get, what can be charitably described as, garbage. In particular, since the graph is four-regular, the eigenvalues should be in $[-4, 4]$ but they are visibly not. I used Matlab (via MATLink), and got the same problems, so this is clearly an issue that transcends mathematica. The question is: what is the best way to deal with it? I am sure MATLAB and Mathematica use the venerable EISPAK code, so there may be something newer/better

Related Links

Upper Division Linear Algebra
positive solutions to a homogeneous linear system
Use LispLab within AutoCAD
Eigenvalues of large symmetric matrices
Eigen - directly compute log determinant of huge sparse matrix
Calculating the coefficients of a separable state
When to use eigen and when to use Blas
Numerical Economic Computability Algorithm
Index of a maximum element in TensorFlow tensor
Efficiently multiplying matrix with transpose using cuBlas
Linear Algebra Derivation in Gertler-Karadi (2015) AEJ
Lapack Orthonormalization Function for Rectangular Matrix
Speed of linear dynamical system trajectory
Linear iterative solver vs direct solver stability
Linear algebra algorithms example [closed]
Solving Matrix equation over GF(2) in Sage

Categories

HOME
httparty
apache-jena
datastore
components
sh
sitecore
r-googlesheets
replace
alarm
pdfbox
spring-data-mongodb
aws-cli
web-hosting
onclick
x264
iis-6
lanczos
dkim
appcelerator-studio
jsonpath
eip
qsqlquery
esoteric-languages
dimensional-modeling
git-extensions
mapstruct
sse
oledb
topology
blade
babel
strongname
dapper-extensions
tiki-wiki
fat
syntax-highlighting
inversion-of-control
python-2.6
testbed
dynamic-jasper
magento-1.9.2.4
numberpicker
httrack
opennms
magento-2.0.7
facebook-pixel
context-switch
video-conferencing
qtranslate
boxing
jqchart
dt
bbpress
janus
rackspace-cloud
rocks
simplepie
actor-platform
signalr.client
observablecollection
appscale
deep
angular-ui-typeahead
beanstalk
mobiledoc-kit
asyncdisplaykit
jnlua
directdraw
java-money
morton-number
include-guards
pax-exam
sony-lifelog-api
sql-server-data-tools
snoop
fits
rapidsvn
android-cookiemanager
psr-4
human-computer-interface
jama
android-audiorecord
ora-06550
code-duplication
cardreader
chart-director
mkv
saleslogix
dajaxice
josql
appjs
azman
hibernateexception
pinch
rmdir
socketserver
globals
non-clustered-index
web-garden
windows-identity
software-lifecycle
wysiwym
fault-tolerance

Resources

Mobile Apps Dev
Database Users
javascript
java
csharp
php
android
MS Developer
developer works
python
ios
c
html
jquery
RDBMS discuss
Cloud Virtualization
Database Dev&Adm
javascript
java
csharp
php
python
android
jquery
ruby
ios
html
Mobile App
Mobile App
Mobile App