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math.NA2023
Generalizing Riemann curvature to Regge metrics
Jay Gopalakrishnan, Michael Neunteufel, Joachim Schöberl +1
In this paper, we propose a generalization of the Riemann curvature tensor on manifolds (of dimension two or higher) endowed with a Regge metric. Specifically, while all components…
physics.optics2023★ 1 cited
PT-symmetry enabled stable modes in multi-core fiber
Tamara Gratcheva, Yogesh N. Joglekar, Jay Gopalakrishnan
Open systems with balanced gain and loss, described by parity-time PT-symmetric Hamiltonians have been deeply explored over the past decade. Most explorations are limited to finite…