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math.SG2017
Action of complex Symplectic matrices on the Siegel upper half space
Keshav Raj Acharya, Matt McBride
The Siegel upper half space, , the space of complex symmetric matrices, with positive definite imaginary part, is the generalization of the complex upper half pl…
math-ph2017
Titchmarsh-Weyl theory for vector valued Schrodinger operators
Keshav Acharya
We develop the Titchmarsh-Weyl theory for vector-valued discrete Schrödinger operators and show that the Weyl functions associated with these operators map complex upper half p…