S. Heefer

activity

20192024

most citedRelativistic compatibility of the interacting

κ

-Poincaré model and implications for the relative locality framework

16 citations · 16 across the 1 of their papers we have counts for

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math.DG2024

Berwald $m$ -Kropina Spaces of Arbitrary Signature: Metrizability and Ricci-Flatness

Sjors Heefer

The (pseudo-)Riemann-metrizability and Ricci-flatness of Finsler spaces with $m$ -Kropina metric $F = α^{1 + m} β^{- m}$ of Berwald type are investigated. We prove that the affine conne…

math.DG2020

On the non metrizability of Berwald Finsler spacetimes

Andrea Fuster, Sjors Heefer, Christian Pfeifer +1

We investigate whether Szabo's metrizability theorem can be extended to Finsler spaces of indefinite signature. For smooth, positive definite Finsler metrics, this important theore…

Berwald m-Kropina Spaces of Arbitrary Signature: Metrizability and Ricci-Flatness

On the non metrizability of Berwald Finsler spacetimes

Berwald $m$ -Kropina Spaces of Arbitrary Signature: Metrizability and Ricci-Flatness