... Ladyˇzenskaja,V .A. Solonnikov,andN.N.Uralceva,Linear and Quasi-linear Equations of ParabolicType, American Mathematical Society, Providence, RI, USA, 1968.19 F. Yi, Z. Yang, and X. Wang, A variational inequality arising ... pp. 117–133, American Mathematical Society, Providence, RI, USA, 2007.15 A. Friedman, “Stochastic games and variational inequalities,” Archive for Rational Mechanics andAnalysis, vol. 51, ... 2011, Article ID 309678, 21 pagesdoi:10.1155/2011/309678 Research Article A Variational Inequality from PricingConvertible BondHuiwen Yan and Fahuai YiSchool of Mathematics, South China Normal...