Uniform convergence of reciprocal polynomials












0














Let $(P_n)_n$ be a sequence of self-reciprocal (named also palyndromic) polynomials that converges uniformly on $[a,b]$ with $a,b$ two reals. Can anything of speacial be told about the limit (more than the limit is continuous ...)?



Thanks in advance.










share|cite|improve this question
























  • What do you mean by "reciprocal polynomials?" Rational functions?
    – Math1000
    yesterday










  • Edited to avoid confusion
    – joaopa
    yesterday










  • Is $P_n$ of degree $n$?
    – marty cohen
    yesterday










  • A polynomial is reciprocal if $x^nP(1/x) = P(x)$ where $n$ is the degree of $P$. Examples: $x^2-x+1, 3x^3-2x^2-2x+3$.
    – marty cohen
    yesterday
















0














Let $(P_n)_n$ be a sequence of self-reciprocal (named also palyndromic) polynomials that converges uniformly on $[a,b]$ with $a,b$ two reals. Can anything of speacial be told about the limit (more than the limit is continuous ...)?



Thanks in advance.










share|cite|improve this question
























  • What do you mean by "reciprocal polynomials?" Rational functions?
    – Math1000
    yesterday










  • Edited to avoid confusion
    – joaopa
    yesterday










  • Is $P_n$ of degree $n$?
    – marty cohen
    yesterday










  • A polynomial is reciprocal if $x^nP(1/x) = P(x)$ where $n$ is the degree of $P$. Examples: $x^2-x+1, 3x^3-2x^2-2x+3$.
    – marty cohen
    yesterday














0












0








0







Let $(P_n)_n$ be a sequence of self-reciprocal (named also palyndromic) polynomials that converges uniformly on $[a,b]$ with $a,b$ two reals. Can anything of speacial be told about the limit (more than the limit is continuous ...)?



Thanks in advance.










share|cite|improve this question















Let $(P_n)_n$ be a sequence of self-reciprocal (named also palyndromic) polynomials that converges uniformly on $[a,b]$ with $a,b$ two reals. Can anything of speacial be told about the limit (more than the limit is continuous ...)?



Thanks in advance.







real-analysis analysis






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited yesterday

























asked yesterday









joaopa

34418




34418












  • What do you mean by "reciprocal polynomials?" Rational functions?
    – Math1000
    yesterday










  • Edited to avoid confusion
    – joaopa
    yesterday










  • Is $P_n$ of degree $n$?
    – marty cohen
    yesterday










  • A polynomial is reciprocal if $x^nP(1/x) = P(x)$ where $n$ is the degree of $P$. Examples: $x^2-x+1, 3x^3-2x^2-2x+3$.
    – marty cohen
    yesterday


















  • What do you mean by "reciprocal polynomials?" Rational functions?
    – Math1000
    yesterday










  • Edited to avoid confusion
    – joaopa
    yesterday










  • Is $P_n$ of degree $n$?
    – marty cohen
    yesterday










  • A polynomial is reciprocal if $x^nP(1/x) = P(x)$ where $n$ is the degree of $P$. Examples: $x^2-x+1, 3x^3-2x^2-2x+3$.
    – marty cohen
    yesterday
















What do you mean by "reciprocal polynomials?" Rational functions?
– Math1000
yesterday




What do you mean by "reciprocal polynomials?" Rational functions?
– Math1000
yesterday












Edited to avoid confusion
– joaopa
yesterday




Edited to avoid confusion
– joaopa
yesterday












Is $P_n$ of degree $n$?
– marty cohen
yesterday




Is $P_n$ of degree $n$?
– marty cohen
yesterday












A polynomial is reciprocal if $x^nP(1/x) = P(x)$ where $n$ is the degree of $P$. Examples: $x^2-x+1, 3x^3-2x^2-2x+3$.
– marty cohen
yesterday




A polynomial is reciprocal if $x^nP(1/x) = P(x)$ where $n$ is the degree of $P$. Examples: $x^2-x+1, 3x^3-2x^2-2x+3$.
– marty cohen
yesterday










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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3062360%2funiform-convergence-of-reciprocal-polynomials%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
















draft saved

draft discarded




















































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.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • 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.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3062360%2funiform-convergence-of-reciprocal-polynomials%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Mario Kart Wii

What does “Dominus providebit” mean?

Antonio Litta Visconti Arese