boundary+line
131Cauchy boundary condition — In mathematics, a Cauchy (pronounced koe she ) boundary condition imposed on an ordinary differential equation or a partial differential equation specifies both the values a solution of a differential equation is to take on the boundary of the… …
132International Boundary and Water Commission — The International Boundary and Water Commission ( es. Comisión Internacional de Límites y Aguas) is an international body created in 1889 by the United States and Mexico to administer the many boundary and water rights treaties and agreements… …
