A linear systolic algorithm for the connected component problem

1989 ◽  
Vol 29 (2) ◽  
pp. 217-226 ◽  
Author(s):  
Shing-Tsaan Huang ◽  
Ming-Shin Tsai
1983 ◽  
Vol 12 (2) ◽  
pp. 354-365 ◽  
Author(s):  
Susanne E. Hambrusch

2004 ◽  
Vol 14 (01) ◽  
pp. 83-97
Author(s):  
JONG-CHUANG TSAY

A parenthesis string is a string of left and right parentheses. The string is well-formed when it consists of balanced pairs of left and right parentheses. This study presents a novel systolic algorithm for generating all the well-formed parenthesis strings in lexicographical order. The algorithm is cost-optimal and is run on a linear array of processors such that each well-formed parenthesis string can be generated in three time steps. The processor array is appropriate for VLSI implementation, since it has the features of modularity, regularity, and local connection.


2021 ◽  
Vol 8 (1) ◽  
pp. 208-222
Author(s):  
Georges Dloussky

Abstract Let S be a compact complex surface in class VII0 + containing a cycle of rational curves C = ∑Dj . Let D = C + A be the maximal connected divisor containing C. If there is another connected component of curves C ′ then C ′ is a cycle of rational curves, A = 0 and S is a Inoue-Hirzebruch surface. If there is only one connected component D then each connected component Ai of A is a chain of rational curves which intersects a curve Dj of the cycle and for each curve Dj of the cycle there at most one chain which meets Dj . In other words, we do not prove the existence of curves other those of the cycle C, but if some other curves exist the maximal divisor looks like the maximal divisor of a Kato surface with perhaps missing curves. The proof of this topological result is an application of Donaldson theorem on trivialization of the intersection form and of deformation theory. We apply this result to show that a twisted logarithmic 1-form has a trivial vanishing divisor.


2020 ◽  
Vol 53 (2) ◽  
pp. 3137-3143
Author(s):  
Toru Murayama ◽  
Lorenzo Sabattini

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