TY - JOUR T1 - The Nonlinear Boundary Value Problems of Three Elements for the First Order Quasilinear Elliptic Systems AU - Hu Guoen JO - Journal of Partial Differential Equations VL - 1 SP - 90 EP - 96 PY - 1992 DA - 1992/05 SN - 5 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5732.html KW - The first order quasilinear elliptic systems KW - nonlinear boundary value problems KW - continuity method AB - In this paper, we discuss the nonlinear boundary value problems of three elements with two shifts for the first order quasilinear elliptic systems and the related solvability by using the continuity method.