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Irregularity of a product of curves
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Mathematics
Area of mathematics
Geometry and topology
Algebraic geometry
Algebraic surface
Irregularity of an algebraic surface
2026-09-28
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For
smooth projective curves
C
and
D
, the
Künneth theorem
gives
q
(
C
×
D
)
=
g
(
C
)
+
g
(
D
)
.
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Irregularity of an algebraic surface
Algebraic surface
Algebraic geometry
Geometry and topology
Area of mathematics
Mathematics
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Past exam of the mathematics course of the University of Cambridge
/
2021
/
iii
/
Paper 159
/
3
/
Solution
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