Pointwise behaviour of semicontinuous supersolutions to a quasilinear parabolic equation

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A connection between a general class of superparabolic functions and supersolutions (2010, methodology): “The double limit procedure with respect to the sequence of supersolutions and the regularization parameter might cause subtle difficulties as pointed out by Kinnunen and Lindqvist in Remark 4.1 of [ 11 ].”
Obstacle problem for nonlinear parabolic equations (2009, methodology): “It is essential when proving convergence and comparison results as well as pointwise behaviour of weak supersolutions and superparabolic functions, see [3], [5], and [6].”
On the regularity theory for mixed local and nonlocal quasilinear elliptic equations (2021, methodology): “For more details on fm, we refer to [33].”
On the H\"older regularity of signed solutions to a doubly nonlinear equation (2020, background): “Properties of this mollification can for instance be found in [19].”