Michael's selection theoremreverse-reverse of Michael selection theoremLeray-Schauder fixed point theoremSegment ordered density conjecture.Clarification on the difference between Brouwer Fixed Point Theorem and Schauder Fixed point theoremCorollary of Tietze extension theoremWeak * lower semicontinuityHahn-Banach theorem geometric form complex caseHow to prove Hahn-Banach separation theorem for $X^*times mathbbR$ version?Strong separation theorem in dual spaceHow close is Mazur's Separation Theorem and the 2nd geometric form of HBT?

Why is this code 6.5x slower with optimizations enabled?

Pronouncing Dictionary.com's W.O.D "vade mecum" in English

How is the claim "I am in New York only if I am in America" the same as "If I am in New York, then I am in America?

How old can references or sources in a thesis be?

Patience, young "Padovan"

Do airline pilots ever risk not hearing communication directed to them specifically, from traffic controllers?

Example of a relative pronoun

I see my dog run

If Manufacturer spice model and Datasheet give different values which should I use?

Why is an old chain unsafe?

Is there a minimum number of transactions in a block?

How can bays and straits be determined in a procedurally generated map?

Copenhagen passport control - US citizen

Set-theoretical foundations of Mathematics with only bounded quantifiers

How is it possible to have an ability score that is less than 3?

TGV timetables / schedules?

DOS, create pipe for stdin/stdout of command.com(or 4dos.com) in C or Batch?

How do we improve the relationship with a client software team that performs poorly and is becoming less collaborative?

A Journey Through Space and Time

Copycat chess is back

Is it tax fraud for an individual to declare non-taxable revenue as taxable income? (US tax laws)

N.B. ligature in Latex

How is it possible for user's password to be changed after storage was encrypted? (on OS X, Android)

What defenses are there against being summoned by the Gate spell?



Michael's selection theorem


reverse-reverse of Michael selection theoremLeray-Schauder fixed point theoremSegment ordered density conjecture.Clarification on the difference between Brouwer Fixed Point Theorem and Schauder Fixed point theoremCorollary of Tietze extension theoremWeak * lower semicontinuityHahn-Banach theorem geometric form complex caseHow to prove Hahn-Banach separation theorem for $X^*times mathbbR$ version?Strong separation theorem in dual spaceHow close is Mazur's Separation Theorem and the 2nd geometric form of HBT?













1












$begingroup$


Michael's selection theorem states that a lower hemicontinuous multivalued map with nonempty convex closed values $displaystyle Fcolon Xrightrightarrows E$ from a paracompact space $X$ to a Banach space $E$ admits a continuous selection.



If we replace the assumption "lower hemicontinuous multivalued map with nonempty convex closed values" by one of the following assumptions, does the theorem still hold?



  1. "hemicontinuous multivalued map with nonempty closed values".

  2. "lower hemicontinuous multivalued map with nonempty connected closed values".









share|cite|improve this question









$endgroup$
















    1












    $begingroup$


    Michael's selection theorem states that a lower hemicontinuous multivalued map with nonempty convex closed values $displaystyle Fcolon Xrightrightarrows E$ from a paracompact space $X$ to a Banach space $E$ admits a continuous selection.



    If we replace the assumption "lower hemicontinuous multivalued map with nonempty convex closed values" by one of the following assumptions, does the theorem still hold?



    1. "hemicontinuous multivalued map with nonempty closed values".

    2. "lower hemicontinuous multivalued map with nonempty connected closed values".









    share|cite|improve this question









    $endgroup$














      1












      1








      1





      $begingroup$


      Michael's selection theorem states that a lower hemicontinuous multivalued map with nonempty convex closed values $displaystyle Fcolon Xrightrightarrows E$ from a paracompact space $X$ to a Banach space $E$ admits a continuous selection.



      If we replace the assumption "lower hemicontinuous multivalued map with nonempty convex closed values" by one of the following assumptions, does the theorem still hold?



      1. "hemicontinuous multivalued map with nonempty closed values".

      2. "lower hemicontinuous multivalued map with nonempty connected closed values".









      share|cite|improve this question









      $endgroup$




      Michael's selection theorem states that a lower hemicontinuous multivalued map with nonempty convex closed values $displaystyle Fcolon Xrightrightarrows E$ from a paracompact space $X$ to a Banach space $E$ admits a continuous selection.



      If we replace the assumption "lower hemicontinuous multivalued map with nonempty convex closed values" by one of the following assumptions, does the theorem still hold?



      1. "hemicontinuous multivalued map with nonempty closed values".

      2. "lower hemicontinuous multivalued map with nonempty connected closed values".






      general-topology functional-analysis multivalued-functions






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Mar 22 at 9:26









      DinoDino

      1216




      1216




















          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%2f3157943%2fmichaels-selection-theorem%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.




          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3157943%2fmichaels-selection-theorem%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

          How should I support this large drywall patch? Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?How do I cover large gaps in drywall?How do I keep drywall around a patch from crumbling?Can I glue a second layer of drywall?How to patch long strip on drywall?Large drywall patch: how to avoid bulging seams?Drywall Mesh Patch vs. Bulge? To remove or not to remove?How to fix this drywall job?Prep drywall before backsplashWhat's the best way to fix this horrible drywall patch job?Drywall patching using 3M Patch Plus Primer

          Lowndes Grove History Architecture References Navigation menu32°48′6″N 79°57′58″W / 32.80167°N 79.96611°W / 32.80167; -79.9661132°48′6″N 79°57′58″W / 32.80167°N 79.96611°W / 32.80167; -79.9661178002500"National Register Information System"Historic houses of South Carolina"Lowndes Grove""+32° 48' 6.00", −79° 57' 58.00""Lowndes Grove, Charleston County (260 St. Margaret St., Charleston)""Lowndes Grove"The Charleston ExpositionIt Happened in South Carolina"Lowndes Grove (House), Saint Margaret Street & Sixth Avenue, Charleston, Charleston County, SC(Photographs)"Plantations of the Carolina Low Countrye

          random experiment with two different functions on unit interval Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Random variable and probability space notionsRandom Walk with EdgesFinding functions where the increase over a random interval is Poisson distributedNumber of days until dayCan an observed event in fact be of zero probability?Unit random processmodels of coins and uniform distributionHow to get the number of successes given $n$ trials , probability $P$ and a random variable $X$Absorbing Markov chain in a computer. Is “almost every” turned into always convergence in computer executions?Stopped random walk is not uniformly integrable