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Quantum Gravity Group Meeting
Title: Positive Geometries and Scalar Field Theory.
Speaker: Nikhil Kalyanapuram
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Speaker: PhD Candidate Dmitry Kobylkov, AG Neurosensorik/Animal Navigation, IBU, Carl-von-Ossietzky Universität Oldenburg
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Theoretical Physics Seminar.
Speaker: Rory Cerbus (Fluid Mechanics), "Kolmogorov’s phenomenology and universality of the small scales in 3D turbulence"
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Joint Math and Theoretical physics seminar on Chern-Simons theory, Knot invariants and Volume conjecture. Vyacheslav Lysov will be leading the discussion.
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Prof. David J. Singh, Department of Physics and Astronomy, University of Missouri
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Language: English
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Internal Seminar Series
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Internal Seminar Series
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Internal Seminar Series
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Abstract: It is known that there exist many "non-smoothable 4-manifolds", that is, topological 4-manifolds which do not admit smooth manifold structures. Gauge theory provides a strong tool to detect such interesting topological 4-manifolds. In this talk, I will explain a family version of this story. Namely, I will show that a family version of gauge theory may detect "non-smoothable 4-manifold bundles", which is a fiber bundle whose structure group is the homeomorphism group of a 4-manifold, but we cannot reduce the structure group into the diffeomorphism group. This is joint work with David Baraglia and with Tsuyoshi Kato and Nobuhiro Nakamura.