The contact structure on the real projective space












0












$begingroup$


I came across the following description of the standard contact structure on the real projective space:



let $mathbb{R}^{2n}$ be endowed with its standard symplectic structure. The real projectivization, $mathbb{R} P^{2n-1}$ has a standard contact structure, and a point $p$ in $mathbb{R} P^{2n-1}$ is a real line in $mathbb{R}^{2n}$; its orthogonal complement relatively to the symplectic form is a hyperplane containing this line. In $mathbb{R} P^{2n-1}$ we get a hyperplane through $p$, and the tangent space of this defines the element of the contact structure at $p$.





I have trouble understanding why the last sentence is true. Any help would be greatly appreciated. Thanks !










share|cite|improve this question









$endgroup$

















    0












    $begingroup$


    I came across the following description of the standard contact structure on the real projective space:



    let $mathbb{R}^{2n}$ be endowed with its standard symplectic structure. The real projectivization, $mathbb{R} P^{2n-1}$ has a standard contact structure, and a point $p$ in $mathbb{R} P^{2n-1}$ is a real line in $mathbb{R}^{2n}$; its orthogonal complement relatively to the symplectic form is a hyperplane containing this line. In $mathbb{R} P^{2n-1}$ we get a hyperplane through $p$, and the tangent space of this defines the element of the contact structure at $p$.





    I have trouble understanding why the last sentence is true. Any help would be greatly appreciated. Thanks !










    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      I came across the following description of the standard contact structure on the real projective space:



      let $mathbb{R}^{2n}$ be endowed with its standard symplectic structure. The real projectivization, $mathbb{R} P^{2n-1}$ has a standard contact structure, and a point $p$ in $mathbb{R} P^{2n-1}$ is a real line in $mathbb{R}^{2n}$; its orthogonal complement relatively to the symplectic form is a hyperplane containing this line. In $mathbb{R} P^{2n-1}$ we get a hyperplane through $p$, and the tangent space of this defines the element of the contact structure at $p$.





      I have trouble understanding why the last sentence is true. Any help would be greatly appreciated. Thanks !










      share|cite|improve this question









      $endgroup$




      I came across the following description of the standard contact structure on the real projective space:



      let $mathbb{R}^{2n}$ be endowed with its standard symplectic structure. The real projectivization, $mathbb{R} P^{2n-1}$ has a standard contact structure, and a point $p$ in $mathbb{R} P^{2n-1}$ is a real line in $mathbb{R}^{2n}$; its orthogonal complement relatively to the symplectic form is a hyperplane containing this line. In $mathbb{R} P^{2n-1}$ we get a hyperplane through $p$, and the tangent space of this defines the element of the contact structure at $p$.





      I have trouble understanding why the last sentence is true. Any help would be greatly appreciated. Thanks !







      projective-space contact-topology






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Jan 4 at 19:02









      BrianTBrianT

      1866




      1866






















          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%2f3061973%2fthe-contact-structure-on-the-real-projective-space%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%2f3061973%2fthe-contact-structure-on-the-real-projective-space%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

          'app-layout' is not a known element: how to share Component with different Modules

          android studio warns about leanback feature tag usage required on manifest while using Unity exported app?

          WPF add header to Image with URL pettitions [duplicate]