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math.ST2019
A test against trend in random sequences
Peter Lindqvist
We study a modification of Kendall's tau-test, replacing his permutations of n different numbers by sequences of length n, where repetition is allowed. In particular, binary sequen…
math.AP2019
On a comparison principle for Trudinger's equation
Erik Lindgren, Peter Lindqvist
We study the comparison principle for non-negative solutions of the equation $$ \frac{\partial\,(|v|^{p-2}v)}{\partial t}\,=\, \textrm{div} (|\nabla v|^{p-2}\nabla v), \quad 1<p<\i…