# neelp

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# 23 Questions

 9 Group of order 1225 is abelian 6 Irreducible polynomial over field of order p 6 Every Ring is Isomorphic to a Subring of an Endomorphism Ring of an Abelian Group 5 Continuous function on unit circle has fixed point 4 Roots of monic polynomial over a number ring

# 847 Reputation

 +10 How to calculete $\displaystyle \lim_{x \to 0} \frac{\sin 5x}{x}$ +10 Every Ring is Isomorphic to a Subring of an Endomorphism Ring of an Abelian Group +20 Help with differentiation from first principles +2 How to calculate limit without L'Hopital

 6 why $\mathbb{Z}_8$, $\mathbb{Z}_4\times \mathbb{Z}_2$ and $\mathbb{Z}_2 \times \mathbb{Z}_2 \times \mathbb{Z}_2$ are not isomorphic groups. 6 There exist two distinct elements of $G\setminus H$ which commute? 5 A question about subfield of the complex field 4 Let F be a real-valued holomorphic polynomial. Prove that F is identically constant. 3 Is there a number that ${x^2=i}$ where ${i^2=-1}$

# 45 Tags

 12 group-theory × 5 5 linear-algebra × 3 7 abstract-algebra × 11 3 analysis × 8 6 real-analysis × 13 3 calculus × 3 6 complex-analysis × 3 3 complex-numbers 6 finite-groups 2 trigonometry × 3

# 2 Accounts

 Mathematics 847 rep 29 MathOverflow 101 rep