Papers

• A few pages from "Intro to Commutative ..." by Kunz
  
• "Initial Results in the theory of linear algebraic groups" by Rosenlicht
  
• "Notes on difference equations" by Singer (the prequil to "Galois Theory of Difference Equations")
  
• "Solving difference equations in finite terms" by Hendriks and Singer
• "An Algorithm for determining the difference Galois group of second order difference equations""by Hendriks
• "Quantum Automata and Algebraic Groups" by Derksen et al
• "Hypergeometric solutions of linear recurrences with polynomial coefficients"by Petkovsek