Re: A groupoid measure-theoretic formulation of QM

2020-05-10 Thread Philip Thrift
On Sunday, May 10, 2020 at 9:09:51 AM UTC-5, Philip Thrift wrote: > > > > On Sunday, May 10, 2020 at 7:20:16 AM UTC-5, Bruno Marchal wrote: >> >> >> On 10 May 2020, at 13:45, Philip Thrift wrote: >> >> >> >> >> cf. >>

Re: A groupoid measure-theoretic formulation of QM

2020-05-10 Thread Lawrence Crowell
I read a paper on how spacetime on the level of special relativity can be built from "magma." This is not hot molten rock in the Earth, but a groupoid construction. This was a while ago, almost 10 years, but I read it well; I had to for I was a referee on it. I can't find it right now, but I

Re: A groupoid measure-theoretic formulation of QM

2020-05-10 Thread Philip Thrift
On Sunday, May 10, 2020 at 7:20:16 AM UTC-5, Bruno Marchal wrote: > > > On 10 May 2020, at 13:45, Philip Thrift > > wrote: > > > > > cf. > https://www.researchgate.net/publication/325907723_A_gentle_introduction_to_Schwinger's_formulation_of_quantum_mechanics_The_groupoid_picture > > > > >

Re: A groupoid measure-theoretic formulation of QM

2020-05-10 Thread Bruno Marchal
> On 10 May 2020, at 13:45, Philip Thrift wrote: > > > > > cf. > https://www.researchgate.net/publication/325907723_A_gentle_introduction_to_Schwinger's_formulation_of_quantum_mechanics_The_groupoid_picture > >