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306:contraction morphism associated to
297:{\displaystyle {\overline {NS}}(X)}
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452:Castelnuovo's contraction theorem
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493:Cambridge University Press
402:is a point if and only if
366:{\displaystyle C\subset X}
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336:{\displaystyle f:X\to Y}
248:{\displaystyle N_{1}(X)}
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138:Stein factorization
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544:algebraic geometry
478:, Definition 1.25.
457:Flip (mathematics)
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163:(in particular in
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143:Examples include
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127:fiber space
591:Categories
463:References
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