This textbook has evolved from a set of lecture notes which I prepared for a semester course in Hilbert space. I have in mind first- or second-year graduate students in Mathematics and related fields such as Physics.

We kicked off with a new thematic programme on #SpectralTheory 2 weeks ago, but the 1st focus week is happening 🔜.
Are you joining? 😉

As you could expect, you can reach the schedule and more at https://esi.ac.at/events/e425/ and the talks on our YT Channel at https://youtube.com/@ESIVienna/featured

#GeneralRelativity #HawkingRadiation #StationarySpacetimes #HilbertSpaces

@univienna

(Visit Twitter for the video: https://twitter.com/ESIVienna/status/1669714303581028352)

Thinking like a mathematician.

For future reference, here's the master 🧵 by @tao on what it "suffices to check" to prove whether a particular invariant is preserved. https://mathstodon.xyz/@tao/109451634735720062

Note that he starts with #HilbertSpaces, but downthread he extends the principle more broadly.