Karen Yagdjian

A note on the fundamental solution for the Tricomi-type equation in the hyperbolic domain

Karen Yagdjian · Journal of Differential Equations · 2004 · 73 citations

Tricomi-type Equation, Hyperbolic Domain, Hyperbolic Conservation Law +5

Global Existence for the<i>n</i>-Dimensional Semilinear Tricomi-Type Equations

Karen Yagdjian · Communications in Partial Differential Equations · 2006 · 53 citations

Global Existence, Cauchy Problem, Nonlocal Semilinear Equations +5

Global existence of the scalar field in de Sitter spacetime

Karen Yagdjian · Journal of Mathematical Analysis and Applications · 2012 · 53 citations

Global Existence, General Relativity, Quantum Field Theory +1

The semilinear Klein-Gordon equation in de Sitter spacetime

Karen Yagdjian · Discrete and Continuous Dynamical Systems - S · 2009 · 50 citations · Full text

Elliptic Equation, Engineering, Semilinear Klein-gordon Equation +9

Lp -Lq Decay Estimates fo the Solutions of Strictly Hyperbolic Equations of Second Order with Increasing in Time Coefficients

Michael Reissig, Karen Yagdjian · Mathematische Nachrichten · 2000 · 40 citations

Elliptic Equation, Time Coefficients, Stationary Phase +9