2023-04-142023-04-142022-12-02Ruiz Garzón, G., Osuna Gómez, R. y Ruiz Zapatero, J. (2022). Mixed Variational Inequality Interval-valued Problem: Theorems of Existence of Solutions. Taiwanese Journal of Mathematics, 26 (6), 1257-1280. https://doi.org/10.11650/tjm/220503.1027-54872224-6851https://hdl.handle.net/11441/144376In this article, our efforts focus on finding the conditions for the existence of solutions of Mixed Stampacchia Variational Inequality Interval-valued Problem on Hadamard manifolds with monotonicity assumption by using KKM mappings. Conditions that allow us to prove the existence of equilibrium points in a market of perfect competition. We will identify solutions of Stampacchia variational problem and optimization problem with the interval-valued convex objective function, improving on previous results in the literature. We will illustrate the main results obtained with some examples and numerical results.application/pdf23 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/applications to economicsinterval and finite arithmeticset-valued on manifoldsvariational inequalitiesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.11650/tjm/220503