User Daniel - Mathematics Stack Exchange

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7

votes

1

answer

103

views

prove that the field extension is cyclic

field-theory galois-theory

nov 21 at 10:36 mercio 11.2k

3

7

votes

5

answers

927

views

Can we characterize the Möbius transformations that maps the unit circle into itself?

complex-analysis

oct 8 at 20:32 dke 31

2

6

votes

2

answers

123

views

Is it possible that $H\cap g^{-1}Hg$ is a nontrivial proper subgroup of $H$?

group-theory examples-counterexamples

dec 16 at 19:32 Alexander Gruber 15.1k

1

5

votes

1

answer

100

views

factorization of the cyclotomic $\Phi_n(x)$ over $\Bbb F_p$

polynomials field-theory galois-theory finite-fields

nov 7 at 16:51 mercio 11.2k

1

4

votes

1

answer

167

views

maybe maximum modulus principle $ |f(z)| \leqslant 1 + |z|^{\frac{3} {2}} \forall z $

complex-analysis

may 7 at 13:03 paul garrett 10.5k

1

4

votes

2

answers

146

views

find all the $n$ such that $ \phi(n) , \phi(n+1) , \phi(n+2)$ are powers of 2

number-theory field-theory

nov 24 at 22:43 Alon Amit 6,131

4

votes

2

answers

148

views

cyclotomic extension, quadratic extension of $K=\mathbb{Q}(\sqrt{17}) $ such that $ K/\mathbb{Q}$ is cyclic

galois-theory

nov 4 at 7:44 BenjaLim 16.7k

3

votes

1

answer

156

views

the discriminant of the cyclotomic $\Phi_p(x)$

polynomials field-theory galois-theory

nov 19 at 17:35 marlu 7,294

1

3

votes

2

answers

224

views

computing the galois group of a polynomial

galois-theory

sep 29 at 14:17 i. m. soloveichik 2,359

1

3

votes

1

answer

112

views

finite fields, a cubic extension on finite fields.

galois-theory finite-fields

sep 29 at 6:04 Gerry Myerson 85.7k

2

votes

1

answer

177

views

is this set a regular surface?

differential-geometry surfaces

jan 31 at 6:00 Amudhan 158

2

votes

1

answer

57

views

an irreducible quadric $ X \subset \Bbb A^n$ d is birational to some $\Bbb A^m$

algebraic-geometry

jan 5 at 10:34 Georges Elencwajg 44.8k

1

2

votes

4

answers

55

views

expressing some polynomial in terms of symmetric polynomials

symmetric-polynomials

dec 5 at 22:58 Jack D'Aurizio 2,937

2

votes

1

answer

96

views

The field trace is surjective over the fixed field

field-theory galois-theory

dec 4 at 16:37 Rankeya 4,219

2

votes

1

answer

175

views

a property of the radical closure of a field

field-theory galois-theory

nov 17 at 19:07 Makoto Kato 11.3k

2

votes

3

answers

170

views

there exist an holomorphic function such that ..?

complex-analysis

nov 3 at 20:18 N. S. 27.3k

2

votes

2

answers

60

views

surjective holomorphic function in a special domain

complex-analysis

oct 15 at 3:41 Christopher A. Wong 6,361

2

votes

0

answers

140

views

schwarz lemma, a simple example

complex-analysis

oct 8 at 0:57 Daniel 356

1

2

votes

1

answer

107

views

searching the fixed field of an automorphism, and a primitive generator , in characteristic p.

field-theory galois-theory

oct 4 at 0:58 QiL'8 15.3k

2

votes

1

answer

69

views

triangles and trigonometry

trigonometry

sep 13 at 20:45 S.B. 329

1

2

votes

3

answers

104

views

a representation of $f''$ only using terms of $f$ and constants.

homework real-analysis

jun 21 '12 at 7:11 Daniel 356

1

vote

1

answer

67

views

holomorphic function in a punctured space

complex-analysis

apr 19 at 15:02 vonbrand 6,548

1

vote

0

answers

78

views

splitting field extending an automorphism

field-theory galois-theory

feb 25 at 5:47 Zev Chonoles♦ 53k

1

vote

2

answers

42

views

a proof concerning fundamental group and lifting of paths

general-topology algebraic-topology fundamental-groups

feb 15 at 1:25 Henry T. Horton 7,429

1

vote

3

answers

42

views

the differential of a regular map between varieties

algebraic-geometry

jan 28 at 22:34 countinghaus 6,092

1

vote

2

answers

82

views

proving that this ideal is radical or the generator is irreducible

algebraic-geometry polynomials

jan 18 at 7:22 Hurkyl 21.5k

1

vote

1

answer

75

views

a ideal of the ring of regular functions of an affine variety.

algebraic-geometry

jan 8 at 12:39 Daniel 356

1

vote

2

answers

270

views

simple and irreducible radical extension

field-theory galois-theory

nov 26 at 14:01 mercio 11.2k

1

vote

0

answers

32

views

f entire $f(n)=n^5$ and $ f (-\frac{n}{2} )=n^7$ . How many zeroes have $(f-\pi)(f-e)$ without using picard

complex-analysis

nov 10 at 16:28 Daniel 356

1

vote

1

answer

143

views

holomorphic non constant function, and the surjectivity of some boundaries.

complex-analysis

nov 6 at 17:08 Brad 1,381

Daniel

71 Questions