Kamal

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16 Questions

views newest activity votes

2

8

votes

5

answers

353

views

Finding the smallest integer $n$ such that $1+1/2+1/3+…+1/n≥9$?

combinatorics sequences-and-series

apr 28 at 19:48 Kamal 154

3

7

votes

1

answer

134

views

Fundamental group of the Klein bottle, using action of a group?

algebraic-topology homotopy-theory

feb 28 at 15:34 Daniel Rust 2,412

0

votes

0

answers

29

views

How can we determine if two discret logarithms are equal?

number-theory elementary-number-theory cryptography

jan 9 at 18:34 Kamal 154

0

votes

1

answer

184

views

generators of alternating groups?

symmetric-groups

jan 7 at 14:31 Community♦ 1

0

votes

0

answers

19

views

Computing discret logarithm $log_{g}(h)$ such that $g,h$ are generators for the cyclic group $Z^{*}_{p}$

elementary-number-theory discrete-mathematics cryptography

nov 21 at 7:08 Kamal 154

2

votes

1

answer

72

views

If the action of a group $G$ on $\mathbb{R}$ is properly discontinuous then G is isomorph to $\mathbb{Z}$?

general-topology algebraic-topology topological-groups

oct 20 at 0:44 Mariano Suárez-Alvarez♦ 53.2k

0

votes

1

answer

44

views

$G$ finite group acts freely on top. sp. $X$, can we find for every $x\in X$ an open neighborhood such that:

general-topology algebraic-topology topological-groups

oct 19 at 0:25 Robert Israel 86.4k

0

votes

0

answers

67

views

G is a topological group acts on topological space $X$, is $f_{g}:X\rightarrow X, x\rightarrow g*x$ continuous?

general-topology algebraic-topology topological-groups

oct 18 at 23:55 Kamal 154

0

votes

2

answers

187

views

If $L/k$ and $\gcd(f(x),g(x))=h(x)$ in $k[x]$, then $\gcd(f(x),g(x))$ is also $h(x)$ in $L[x]$?

field-theory galois-theory

oct 15 at 14:36 Community♦ 1

0

votes

0

answers

48

views

References for cohomolgy of coherent sheaves and tate resolutions?

reference-request cohomology sheaf-theory

aug 1 at 10:19 Kamal 154

0

votes

1

answer

88

views

References for Vector bundle over a projective space?

algebraic-geometry

jul 1 at 16:08 Martin Brandenburg 22.8k

4

votes

1

answer

63

views

If $R_2$ is an $R_1$-algebra, then is $R_2 \otimes_{R_1} M$ an $R_2$-module?

abstract-algebra commutative-algebra

jun 21 '12 at 15:42 Dylan Moreland 13.4k

1

vote

1

answer

84

views

computing betti numbers using Macaulay program ??

homological-algebra

jun 13 '12 at 9:31 Kamal 154

1

vote

2

answers

154

views

question about direct sum and direct product in Graded Modules?

graded-modules

jun 8 '12 at 4:34 Community♦ 1

3

votes

1

answer

72

views

The relation between betti numbers and Tor functor?

homological-algebra cohomology

may 30 '12 at 15:17 user02138 5,992

2

votes

1

answer

86

views

Should Hom(M,N) be also graded ??

graded-modules

mar 28 '12 at 22:42 Qiaochu Yuan 118k

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