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The categories $$P_d$$ and $$S_d$$ of two-dimensional $$d$$-log-terminal pairs. (English. Russian original) Zbl 0979.18002
Russ. Math. Surv. 54, No. 4, 849-851 (1999); translation from Usp. Mat. Nauk 54, No. 4, 179-180 (1999).
Several basic properties are stated (without proofs) of a category of pairs $$(V,C)$$ where $$V$$ is a normal projective surface over complex numbers and $$C$$ is a Weil divisor on $$V$$ (a sum of finitely many of irreducible curves).

##### MSC:
 18B99 Special categories 18F99 Categories in geometry and topology 18A35 Categories admitting limits (complete categories), functors preserving limits, completions 18E35 Localization of categories, calculus of fractions
##### Keywords:
Weil divisor; projective surface
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