Page 1 John Cardy Cardy-Smirnov Observable Lattice models discrete complex analysis Page 1Page 2 Lennart Carleson Lucio RussoPaul Seymour Lattice models discrete complex analysis Page 2Page 3 Lattice models discrete complex analysis Page 3Page 4 Lattice models discrete complex analysis Page 4Page 5 Lattice models discrete complex analysis Page 5Page 6 Lattice models discrete complex analysis Page 6