Our great sponsors
-
SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
% https://q.uiver.app/?q=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 \[\begin{tikzcd} {\mathcal{H}} && {} && {\mathbb{A}_{\mathbb{R}}^1} \\ \\ \\ {\dfrac{\mathbb{R}[x,y]}{(xy-1)}} & {} & {} && {\mathbb{R}[t]} \arrow[shorten <=5pt, shorten >=5pt, Rightarrow, 2tail reversed, from=1-3, to=4-3] \arrow[tail reversed, from=1-1, to=4-1] \arrow[tail reversed, from=1-5, to=4-5] \arrow["{f^{\ast}}", shift left=2, from=4-1, to=4-5] \arrow["{g^{\ast}}", shift left=2, from=4-5, to=4-1] \arrow["f", shift left=2, from=1-1, to=1-5] \arrow["g", shift left=2, from=1-5, to=1-1] \end{tikzcd}\]