MODIFIED POPOV'S SUBGRADIENT EXTRAGRADIENT
ALGORITHM WITH INERTIAL TECHNIQUE FOR
EQUILIBRIUM PROBLEMS AND ITS APPLICATIONS
Nopparat Wairojjana1, Habib ur Rehman2,
Nuttapol Pakkaranang2, and Tiwabhorn Khanpanuk3 1 Applied Mathematics Program, Fac. of Science and
Technology, Valaya Alongkorn Rajabhat University
under the Royal Patronage
Pathumthani, 13180, THAILAND 2 Dept. of Mathematics, Fac. of Science
King Mongkut's University of Technology Thonburi
Bangkok 10140, THAILAND 3 Dept. of Mathematics, Fac. of Science and Technology
Phetchabun Rajabhat University
Phetchabun 67000, THAILAND
In this paper, we are introducing a new algorithm that is based on a subgradient and an inertial scheme using an explicit method for step size evaluation to solve pseudomonotone equilibrium problems. The weak convergence theorem for an algorithm is well established on the basis of standard cost bifunction conditions. A useful feature of a method that it operates without a line search procedure or prior Lipschitz-type constant information. The reason for this is that it has used a step size rule that is modified for each iteration on the basis of some of the previous iterations. For computational experiment, we consider the well-known Nash-Cournot equilibrium model to support our well-established convergence result and to see that our suggested methodology has a competitive edge over existing ones.
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