Let A be a diagonal matrix whose characteristic polynomial is...
$begingroup$
Let V be the set of all $;72times72;$ matrices commuting with A. Let $W$ be the subset of $V$ consisting of all diagonal matrices. What is the dimension of $W$ and $V$?
linear-algebra
$endgroup$
add a comment |
$begingroup$
Let V be the set of all $;72times72;$ matrices commuting with A. Let $W$ be the subset of $V$ consisting of all diagonal matrices. What is the dimension of $W$ and $V$?
linear-algebra
$endgroup$
1
$begingroup$
What is the minimal polynomial of $;A;$ ? What is its Jordan Canonical Form (JCF)? Can you see how to work with the Jordan blocks in this JCF? Show some self work...
$endgroup$
– DonAntonio
Jan 27 at 8:40
add a comment |
$begingroup$
Let V be the set of all $;72times72;$ matrices commuting with A. Let $W$ be the subset of $V$ consisting of all diagonal matrices. What is the dimension of $W$ and $V$?
linear-algebra
$endgroup$
Let V be the set of all $;72times72;$ matrices commuting with A. Let $W$ be the subset of $V$ consisting of all diagonal matrices. What is the dimension of $W$ and $V$?
linear-algebra
linear-algebra
edited Jan 27 at 8:38
DonAntonio
180k1494233
180k1494233
asked Jan 27 at 8:32
Aabhas VijAabhas Vij
11
11
1
$begingroup$
What is the minimal polynomial of $;A;$ ? What is its Jordan Canonical Form (JCF)? Can you see how to work with the Jordan blocks in this JCF? Show some self work...
$endgroup$
– DonAntonio
Jan 27 at 8:40
add a comment |
1
$begingroup$
What is the minimal polynomial of $;A;$ ? What is its Jordan Canonical Form (JCF)? Can you see how to work with the Jordan blocks in this JCF? Show some self work...
$endgroup$
– DonAntonio
Jan 27 at 8:40
1
1
$begingroup$
What is the minimal polynomial of $;A;$ ? What is its Jordan Canonical Form (JCF)? Can you see how to work with the Jordan blocks in this JCF? Show some self work...
$endgroup$
– DonAntonio
Jan 27 at 8:40
$begingroup$
What is the minimal polynomial of $;A;$ ? What is its Jordan Canonical Form (JCF)? Can you see how to work with the Jordan blocks in this JCF? Show some self work...
$endgroup$
– DonAntonio
Jan 27 at 8:40
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3089278%2flet-a-be-a-diagonal-matrix-whose-characteristic-polynomial-is-px-x-168x-1%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3089278%2flet-a-be-a-diagonal-matrix-whose-characteristic-polynomial-is-px-x-168x-1%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
$begingroup$
What is the minimal polynomial of $;A;$ ? What is its Jordan Canonical Form (JCF)? Can you see how to work with the Jordan blocks in this JCF? Show some self work...
$endgroup$
– DonAntonio
Jan 27 at 8:40