Mathematical Systems Theory, Volume 21

Volume 21, Number 1, 1988

• Oscar H. Ibarra, Bala Ravikumar: Sublogarithmic-Space Turing Machines, Nonuniform Space Complexity, and Closure Properties. 1-17
• Ruth F. Curtain: Equivalence of Input-Output Stability and Exponential Stability for Infinite-Dimensional Systems. 19-48
• David S. Gilliam, Bernard Anthony Mair, C. F. Martin: A Convolution Method for Inverse Heat Conduction Problems. 49-60
• J. William Helton, Leiba Rodman: Correction: Vandermonde and Resultant Matrices: An Abstract Approach. 61 , ->Mathematical Systems Theory 20(2-3): 169-192(1987)

Volume 21, Number 2, 1988

• D. Cheng, A. Isidori, Witold Respondek, Tzyh Jong Tarn: Exact Linearization of Nonlinear Systems with Outputs. 63-83
• Paul Erdös, Israel Koren, Shlomo Moran, Gabriel M. Silberman, Shmuel Zaks: Minimum-Diameter Cyclic Arrangements in Mapping Data-Flow Graphs onto VLSI Arrays. 85-98
• Leen Torenvliet: A Second Step Toward the Strong Polynomial-Time Hierarchy. 99-123

Volume 21, Number 3, 1989

• Zoltán Fülöp, Sándor Vágvölgyi: Variants of Top-Down Tree Transducers With Look-Ahead. 125-145
• Dietmar Salamon: Realization Theory in Hilbert Space. 147-164
• Madanpal S. Verma: Synthesis of H^\infty-Optimal Linear Feedback Systems. 165-186

Volume 21, Number 4, 1989

• Bruno Courcelle: The Monadic Second-Order Logic of Graphs, II: Infinite Graphs of Bounded Width. 187-221
• Rattikorn Hewett, Giora Slutzki: Comparisons Between Some Pumping Conditions for Context-Free Languages. 223-233
• Salvatore Monaco, Dorothée Normand-Cyrot: Functional Expansions for Nonlinear Discrete-Time Systems. 235-254