Lars Hörmander

• The analysis of linear partial differential operators
• Linear partial differential operators
• On the existence and the regularity of solutions of linear pseudo-differential equations
• An introduction to complex analysis in several variables
• An introduction to complex analysis in several variables
• An Introduction to Complex Analysis in Several Variables (North-Holland Mathematical Library)
• Lectures on nonlinear hyperbolic differential equations
• Lectures on Nonlinear Hyperbolic Differential Equations (Mathématiques et Applications)
• Linear partial differential operators
• Linear Partial Differential Operators. (Grundlehren der mathematischen Wissenschaften)
• Linear Partial Differential Operators. 4th Printing
• Notions of convexity