LESSWRONG
LW

549
muzammil
-1120
Message
Dialogue
Subscribe

Posts

Sorted by New

Wikitag Contributions

Comments

Sorted by
Newest
Fixed point theory (locally (α,β,ψ) dominated contractive condition)
Answer by muzammilOct 04, 202210

     (Locally (α,β,ψ) dominated contractive condition)
   Let α,β:X×X→[0,+∞), r>0, x₀∈X, ψ∈Ψ, (X,d) be an (α,β)-complete metric space and S,T:X→X are locally (α,β)-continuous and (α,β)-dominated triangular mappings on B(x₀,r). We say that the pair (S,T) satisfies the locally (α,β,ψ) dominated contractive condition on B(x₀,r), if

d(Sx,Ty)≤ψ(max{d(x,y),d(x,Sx),d(y,Ty),((d(x,Ty)+d(y,Sx))/2)}),   #1.1

for all x,y∈B(x₀,r) with α(x,y)≥β(x,y) or α(y,x)≥β(y,x), and

∑_{i=0}^{j}ψ^{i}(d(x₀,Sx₀))≤r for all j∈ℕ∪{0}.   #1.2

   2. Result for locally (α,β,ψ) dominated contractive condition
   Theorem 2.1 Let α,β:X×X→[0,+∞), r>0, x₀∈X, ψ∈Ψ, (X,d) be an (α,β)-complete metric space and S,T:X→X. If the following conditions hold:
   1) S and T are (α,β)-continuous,
   2) The pair (S,T) satisfies the locally (α,β,ψ) dominated contractive condition on B(x₀,r),
   3) If x and y belongs to set of common fixed points of S and T, then α(x,y)≥β(x,y).
   Then S and T have a unique common fixed point.

According to 1.1 condition I want to solve this theorem in families of mappings.

Reply
Fixed point theory (locally (α,β,ψ) dominated contractive condition)
muzammil3y10

this is assignment from uni Professor

Reply
No wikitag contributions to display.
0Fixed point theory (locally (α,β,ψ) dominated contractive condition)
Q
3y
Q
3