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math.AG2026
Congruence spectra and geometric reconstruction of -algebras
JuAe Song
We develop a geometric theory of congruence spectra for semirings. We define the congruence spectrum for a semiring as the set of prime congruences on it, equip it with the Zariski…
math.AG2026
Tropical curves with parallel rays
JuAe Song
In the previous works, the rational function semifields of abstract tropical curves were characterized. In this paper, we give a contravariant categorical equivalence between the c…