Abstract
The aim of this paper is to define a generalized monotone mapping, which is the sum of symmetric cocoercive mapping and symmetric monotone mapping. The resolvent operator associated with generalized monotone mapping is defined and some of its properties are shown. We solve a variational inclusion problem using these new concepts. For illustration, some examples are given.
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The first author is supported by Department of Science and Technology, Government of India under Grant no. SR/S4/MS:577/09 and the third author is supported by Grant no. NSC 99-2221-E-037-007-MY3.
Appendix: Verification (Calculations) of Example 4.1
Appendix: Verification (Calculations) of Example 4.1
Let X=ℝ2 with usual inner product. Let A,B:ℝ2→ℝ2 be defined by
Let H:ℝ2×ℝ2→ℝ2 is defined by
Then
which implies that
i.e., H(A,B) is \({\frac{3}{10}}\)-cocoercive with respect to A, and
which implies that
i.e., H(A,B) is 1-relaxed cocoercive with respect to B.
which implies that
i.e., A is \({\frac{\sqrt{1}0}{3}}\) -expansive, for n=3,4.
which implies that
i.e., B is \({\frac{1}{\sqrt{n}}}\) -Lipschitz continuous, for n=1,2.
which implies that
i.e., H(A,B) is mixed Lipschitz continuous with constant \({\frac {\sqrt{1}0}{n}}\), for n=5,6.
(v) Let P,R:ℝ2→ℝ2 be defined by
Now
which implies that
i.e., H(A,B) is \({\frac{1}{n}}\)-mixed strongly monotone with respect to P and R, for n=6,7.
(vi) Let f,g:ℝ2→ℝ2 be defined by
Suppose that M:ℝ2×ℝ2→ℝ2 is defined by
Then
which implies that
i.e., M(f,g) is 4-strongly monotone with respect to f, and
which implies that
i.e., M(f,g) is \({\frac{1}{4}}\)-relaxed monotone with respect to g.
Moreover, for λ=1, M is H(⋅,⋅)-Co-monotone with respect to A,B,f and g.
(vii) Let R,S,T:ℝ2→ℝ2, be the identity mappings, then R,S and T are \(\mathcal{D}\)-Lipschitz continuous mappings with constant 1.
(viii) Let P,F,G:ℝ2→ℝ2 be defined by
Then
which implies that P is 1-Lipschitz continuous.
which implies that
i.e., F is \({\frac{\sqrt{5}}{n}}\)-Lipschitz continuous, for n=3,4.
which implies that
i.e., G is \({\frac{5}{n}}\)-Lipschitz continuous, for n=11,12.
which implies that
i.e., S is \({\frac{1}{n}}\)-relaxed Lipschitz continuous with respect to F, for n=2,3.
which implies that
i.e., T is \({\frac{1}{n}}\)-relaxed monotone with respect to G, for n=3,4.
(xi) For the constants
obtained from above conditions (i) to (x), one can easily verify, for λ=1, that the condition (xi) of Theorem 4.1, given by
holds.
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Ahmad, R., Akram, M. & Yao, JC. Generalized Monotone Mapping with an Application for Solving a Variational Inclusion Problem. J Optim Theory Appl 157, 324–346 (2013). https://doi.org/10.1007/s10957-012-0182-7
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DOI: https://doi.org/10.1007/s10957-012-0182-7