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Jun 17, 2023 at 2:33 comment added Daniel Asimov If there are some things about the L^p spaces that vary real-analytically with p, then one pathway might be first to analytically continue those things to a complex neighbourhood of (0,oo), and then to infer from that how the p in L^p might be non-real. [Written before reading the answer by Dmitri Pavlov.]
Jun 16, 2023 at 23:43 vote accept TheSimpliFire
Jun 16, 2023 at 19:44 answer added Dmitri Pavlov timeline score: 8
Jun 16, 2023 at 19:33 comment added Zach Teitler Perhaps it makes sense to start with Hölder's inequality. What would it say for complex $p,q$ and some simple functions?
Jun 16, 2023 at 19:24 comment added paul garrett For what it's worth, I can confirm that I myself have absolutely never seen a literal complex-indexed "norm"...
Jun 16, 2023 at 19:23 comment added TheSimpliFire @paulgarrett It's probably not the best word choice, but I am interested in extending the norm to a complex index. Also, that was just one variant we considered. I did a fair bit of searching but was unable to find anything on this topic.
Jun 16, 2023 at 19:08 comment added paul garrett Since you mention "spin": is it possible that you're not necessarily/exactly wanting a "norm" with complex index, but, rather, computing a (Fourier-like) component with respect to a (compact?) group action?
Jun 16, 2023 at 17:58 history asked TheSimpliFire CC BY-SA 4.0