Difference between revisions of "A Portal Special Presentation- Geometric Unity: A First Look"
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A Portal Special Presentation- Geometric Unity: A First Look (view source)
Revision as of 17:54, 25 April 2020
, 17:54, 25 April 2020→Properties of the Inhomogeneous Gauge Group (IGG)
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<p>[01:32:13] And now the question is, do we have any such actions that are particularly nice? And could we recognize them the way Einstein did by trying to write down, not the action. And Hilbert was the first one to write that down. But I, you know, I always feel defensive, uh, because I think Einstein and Grossmann did so much more to begin the theory in that the Lagrangian that got written down was really just an inevitability. | <p>[01:32:13] And now the question is, do we have any such actions that are particularly nice? And could we recognize them the way Einstein did by trying to write down, not the action. And Hilbert was the first one to write that down. But I, you know, I always feel defensive, uh, because I think Einstein and Grossmann did so much more to begin the theory in that the Lagrangian that got written down was really just an inevitability. | ||
<p>[01:32:38] Just humor me for this talk, and let me call it the Einstein-Grossmann Lagrangian. Hilbert's certainly done fantastic things and has a lot of credit elsewhere, and he did do it first. But here, what we had was that Einstein thought in terms of the differential of the action, not the action itself. So, what we're looking for is equations of motion or some field, $$\alpha$$ where $$\alpha\in\Omega^{1}(\mathcal{G}$$. | <p>[01:32:38] Just humor me for this talk, and let me call it the Einstein-Grossmann Lagrangian. Hilbert's certainly done fantastic things and has a lot of credit elsewhere, and he did do it first. But here, what we had was that Einstein thought in terms of the differential of the action, not the action itself. So, what we're looking for is equations of motion or some field, $$\alpha$$ where $$\alpha\in\Omega^{1}(\mathcal{G})$$. | ||
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