1. On q-analogues of Riemann's zeta function

   • I. Cherednik

   Pages: 447 - 491

2. Quadratic linear algebras associated with factorizations of noncommutative polynomials and noncommutative differential polynomials

   • I. Gelfand
   • V. Retakh
   • R. L. Wilson

   Pages: 493 - 523

3. Noncommutative algebras associated to complexes and graphs

   • I. Gelfand
   • S. Gelfand
   • V. Retakh

   Pages: 525 - 531

4. Homotopy ends and Thomason model categories

   • C. Weibel

   Pages: 533 - 564

5. Invariant polynomials in the free skew field

   • R. L. Wilson

   Pages: 565 - 586