The Fujita exponent for a semilinear heat equation with forcing term on Heisenberg group

Meiirkhan B. Borikhanov, Michael V. Ruzhansky, Berikbol T. Torebek

2024

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DOI 10.1002/mma.10514
Data confidence 70 medium
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Abstract

In this paper, we study a critical exponent to the semilinear heat equation with forcing term on Heisenberg group. Our technique of proof is based on methods of nonlinear capacity estimates specifically adapted to the nature of the Heisenberg group. The critical exponent will be bounded for all dimensions of the Heisenberg group, in contrast to the Euclidean case which in the 1D and 2D cases will be infinite. In addition, we give an upper bound estimate on the lifespan of local solutions.