191 reputation
8
bio website
location
age
visits member for 1 year, 10 months
seen Jul 27 at 22:07

Jan
7
asked Formula for an equation
Dec
31
revised Decide if a formal language is a Context-free language
added 22 characters in body
Dec
31
comment Decide if a formal language is a Context-free language
Isn't it enough to show that $L=h^{-1}(L_2)$ ? So $L$ is closed under inverse homomorphism? Why is the second part needed? Please be a bit more specific I am having bad time over here :)
Dec
31
awarded  Supporter
Dec
31
accepted Decide if a formal language is a Context-free language
Dec
30
revised Decide if a formal language is a Context-free language
edited body
Dec
30
revised Decide if a formal language is a Context-free language
edited tags
Dec
30
awarded  Scholar
Dec
30
accepted Question about the meaning of expression in cryptography
Dec
30
asked Decide if a formal language is a Context-free language
Dec
30
revised for a $3 \times 3$ matrix A ,value of $ A^{50} $ is
added 1 characters in body
Dec
30
answered for a $3 \times 3$ matrix A ,value of $ A^{50} $ is
Dec
30
awarded  Teacher
Dec
30
answered Question about the meaning of expression in cryptography
Dec
29
comment Question about the meaning of expression in cryptography
So why $1^n$ and $0^n$ ? Why not other combinations?
Dec
29
comment Question about the meaning of expression in cryptography
The special role of $0^k$ and $1^k$ in that question
Dec
29
revised Question about the meaning of expression in cryptography
added 207 characters in body
Dec
29
awarded  Student
Dec
28
comment Question about the meaning of expression in cryptography
i know it represent a string of zeros or ones but why always in cryptography $1^k$ and $0^k$ are used? do they have a symbolic value? that the part that confuses me.
Dec
28
revised Question about the meaning of expression in cryptography
added 2 characters in body