On the existence of mass minimizing rectifiable <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>G</mml:mi></mml:math> chains in finite dimensional normed spaces

نویسندگان

چکیده

We introduce the notion of density contractor dimension m in a finite dimensional normed space X. If m+1=dimX, this includes area contracting projectors on hyperplanes whose existence was established by H. Busemann. m=2, contractors are an ersatz for such and their existence, here, follows from works D. Burago S. Ivanov. Once available, corresponding Plateau problem admits solution among rectifiable G chains, regardless group coefficients G. This is obtained as consequence lower semicontinuity Hausdorff mass, which we offer two proofs. One these based new type integral geometric measure.

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ژورنال

عنوان ژورنال: Annales de l'Institut Fourier

سال: 2023

ISSN: ['0373-0956', '1777-5310']

DOI: https://doi.org/10.5802/aif.3550