




  Quantum Cosmology and Baby UniversesQuantum gravity is notoriously a subject where problems vastly outnumber results. This is no surprise at short distances, on the order of the Planck length, where most of us expect quantum fluctuations in the metric to cause spacetime itself to lose its meaning and gravity to be subsumed (along with the other socalled fundamental interactions)...   


Tensors: The Mathematics of Relativity Theory and Continuum MechanicsThis book emerged from courses taught at the University College of Dublin, CarnegieMellon University and mostly at Simon Fraser University. This is a modern introduction to the theory of tensor algebra and tensor analysis. It discusses tensor algebra in Chapters 1 and 2. Differential manifold is introduced in Chapter 3. Tensor analysis,...     


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