Double ball property: an overview and the case of step two Carnot groups
We investigate the notion of the so-called Double Ball Property, which concerns the nonnegative sub-solutions of some differential operators. Thanks to the axiomatic approach developed in [6], this is an important tool in order to solve the Krylov-Safonov's Harnack inequality problem for this k...
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| Format: | Article |
| Language: | English |
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University of Bologna
2012-12-01
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| Series: | Bruno Pini Mathematical Analysis Seminar |
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| Online Access: | http://mathematicalanalysis.unibo.it/article/view/3417 |