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2h
answered Non-empty intersection of specific sets
17h
answered Sequences formed by integer evaluations of polynomials modulo $ p^{k} $, where $ p $ is a prime number and $ k \in \Bbb{N} $.
20h
answered Understanding why $a+b\sqrt {2}\neq \sqrt {3} $
1d
answered Is it possible that $1\otimes 1 = 0$?
1d
answered What is the significance of using “$a$” vs “$x$” in this text?
1d
answered Group presentation of Integers $\big(\mathbb{Z,+}\big)$
1d
answered Can a unit of infinite order in algebraic integers of a number field be an arbitrarily high power of another unit?
1d
answered The Change-making problem algorithm proof (at the dynamic programming method)
1d
answered How to establish the distributive property of sum notation
1d
answered How many archers do I need to deploy to destroy an Archer Tower?
1d
answered Show that the rings $2\mathbb{Z}$ and $3\mathbb{Z}$ are not isomorphic.
1d
answered Find all 4 digits numbers that $ABCD=(CD)^2$
2d
answered Arithmetic modulo $n$ when $n>a$
2d
answered $\{\,z\in \mathbb C : \operatorname{Im}(z)>-1 , |z|<2\, \}$ onto upper half space $\{\,z\in \mathbb C : \operatorname{Im}(z)>0 \,\}$
2d
answered Which function do we want to minimize?
2d
answered If $A|B$ and $B|A$ then prove $A=\pm B$
2d
answered What happens when the interval of an integral changes from infinity to a constant number?
May
21
answered Is my answer correct? (Devious auction game)
May
20
answered $x^2+y^2=N$, Diophantine equation
May
20
answered Is group $G$ must abelian, when some condition is given by using exact sequence?