a problem on functional equations
101593
Possible to have a continuous sequence?
131586
Hard functional equation: $ f \big ( x y + f ( x ) \big) = f \big( f ( x ) f ( y ) \big) + x $
116270
Functional equations leading to sine and cosine
66951
Proving the existence of a sequence of functions converging to 0 with an added property
31872
Two similar limit problems
100319
Functional equation with strange property about irrational numbers
157744
Cauchy's functional equation with composite function: $gf(x+y)=gf(x)+gf(y)$
147195
Help needed in finding the value of $f(2001)$ in the given functional equation
120676
A certain element which makes functionals positive
34888
An MCQ for finding the extremal of the functional $J = \int_{a}^{b} F(x, y, y^{'})$
121765
Semigroups and solutions of equation
128751
Solving for $f(2004)$ in a given functional equation
20568
Does the following have a solution for f(x,y)?
126698
measurability of a function -equivalent conditions
62111
Functional Equation $f(mn)=f(m)f(n)$.
33495
A limit problem about $a_{n+1}=a_n+\frac{n}{a_n}$
120170
A late-diverging "approximating solution" for a system of functional equations