5 citations · 9 across the 9 of their papers we have counts for
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math.CT2018★ 1 cited
Grothendieck topologies on posets
Jens Hemelaer
Lindenhovius has studied Grothendieck topologies on posets and has given a complete classification in the case that the poset is Artinian. We extend his approach to more general po…
math.AG2018★ 5 cited
An arithmetic topos for integer matrices
Jens Hemelaer
We study the topos of sets equipped with an action of the monoid of regular matrices over the integers. In particular, we show that the topos-theoretic points are give…