Category Archives: Research
Numerical Integration of Transport Equations
This C code is an accompaniment to the paper: A Transport Equation Approach to Calculations of Hadamard Green Functions and off-diagonal DeWitt Coefficients. It numerically calculates the function appearing in the Hadamard form of the Green function. Please see the … Continue reading
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CovariantSeries Mathematica Package
This Mathematica code is an accompaniment to the paper: A Transport Equation Approach to Calculations of Hadamard Green Functions and off-diagonal DeWitt Coefficients. It symbolically calculates covariant series expansions of many bi-tensors, including the functions appearing in the Hadamard form … Continue reading
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Hadamard-WKB Expansion of the Green Function
This Mathematica code is an accompaniment to the paper: Pade Approximants of the Green Function in Spherically Symmetric Spacetimes. It caculates the Green function, G(x,x’), for spherically symmetric spacetimes as a Taylor series in the coordinate separation of the points. … Continue reading
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Installing GRTensor on Mac OSX
GRTensor is a very handy Maple package for doing calculations in General Relativity. Given a specific metric, it’s great at calculating the components of tensors. You can define your own tensors or use the predefined ones. You can even define … Continue reading
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GRTensor: Metrics and Mac OS X
GRTensor is a very handy Maple package for doing calculations in General Relativity. Given a specific metric, it’s great at calculating the components of tensors. You can define your own tensors or use the predefined ones. You can even define … Continue reading
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