The symbol $(Y-Y_1)^-$
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I am reading Hartshorne's Algebraic Geometry and on p. 5, in the proof of Proposition 1.5, there suddenly appeared the symbol $Z=(Y-Y_1)^-$ in the second paragraph. What does the symbol mean? This is supposed to make $Z=Y_2cupcdotscup Y_r$ hold.
algebraic-geometry
asked Nov 22 at 7:40
sai
515
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I am reading Hartshorne's Algebraic Geometry and on p. 5, in the proof of Proposition 1.5, there suddenly appeared the symbol $Z=(Y-Y_1)^-$ in the second paragraph. What does the symbol mean? This is supposed to make $Z=Y_2cupcdotscup Y_r$ hold.
algebraic-geometry
asked Nov 22 at 7:40
sai
515
2
The closure of $Y-Y_1$ perhaps?
– Lord Shark the Unknown
Nov 22 at 7:49
Why then, is $Z=Y_2cupcdotscup Y_r$ true?
– sai
Nov 22 at 7:58
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am reading Hartshorne's Algebraic Geometry and on p. 5, in the proof of Proposition 1.5, there suddenly appeared the symbol $Z=(Y-Y_1)^-$ in the second paragraph. What does the symbol mean? This is supposed to make $Z=Y_2cupcdotscup Y_r$ hold.
algebraic-geometry
asked Nov 22 at 7:40
sai
515
I am reading Hartshorne's Algebraic Geometry and on p. 5, in the proof of Proposition 1.5, there suddenly appeared the symbol $Z=(Y-Y_1)^-$ in the second paragraph. What does the symbol mean? This is supposed to make $Z=Y_2cupcdotscup Y_r$ hold.
algebraic-geometry
algebraic-geometry
asked Nov 22 at 7:40
sai
515
asked Nov 22 at 7:40
sai
515
asked Nov 22 at 7:40
sai
515
asked Nov 22 at 7:40
sai
515
asked Nov 22 at 7:40
sai
515
515
2
The closure of $Y-Y_1$ perhaps?
– Lord Shark the Unknown
Nov 22 at 7:49
Why then, is $Z=Y_2cupcdotscup Y_r$ true?
– sai
Nov 22 at 7:58
add a comment |
2
The closure of $Y-Y_1$ perhaps?
– Lord Shark the Unknown
Nov 22 at 7:49
Why then, is $Z=Y_2cupcdotscup Y_r$ true?
– sai
Nov 22 at 7:58
2
2
The closure of $Y-Y_1$ perhaps?
– Lord Shark the Unknown
Nov 22 at 7:49
The closure of $Y-Y_1$ perhaps?
– Lord Shark the Unknown
Nov 22 at 7:49
Why then, is $Z=Y_2cupcdotscup Y_r$ true?
– sai
Nov 22 at 7:58
Why then, is $Z=Y_2cupcdotscup Y_r$ true?
– sai
Nov 22 at 7:58
add a comment |
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2
The closure of $Y-Y_1$ perhaps?
– Lord Shark the Unknown
Nov 22 at 7:49
Why then, is $Z=Y_2cupcdotscup Y_r$ true?
– sai
Nov 22 at 7:58