English

Assembly Addition Chains

Combinatorics 2025-12-23 v1 Computational Complexity

Abstract

In this paper we extend the notion of Addition Chains over Z+ to a general set S. We explain how the algebraic structure of Assembly Multi-Magma over the pairs (S,BB proper subset of S) allows to define the concept of Addition Chain over S, called Assembly Addition Chains of S with Building Blocks BB. Analogously to the Z+ case, we introduce the concept of Optimal Assembly Addition Chains over S and prove lower and upper bounds for their lengths, similar to the bounds found by Schonhage for the Z+ case. In the general case the unit 1 is in set Z+ is replaced by the subset BB and the mentioned bounds for the length of an Optimal Assembly Addition Chain of O is in set S are defined in terms of the size of O (i.e. the number of Building Blocks required to construct O). The main examples of S that we consider through this papers are (i) j-Strings (Strings with an alphabeth of j letters), (ii) Colored Connected Graphs and (iii) Colored Polyominoes.

Cite

@article{arxiv.2512.18030,
  title  = {Assembly Addition Chains},
  author = {Leroy Cronin and Juan Carlos Morales Parra and Keith Y. Patarroyo},
  journal= {arXiv preprint arXiv:2512.18030},
  year   = {2025}
}

Comments

31 pages, 16 figures, 25 references

R2 v1 2026-07-01T08:34:16.595Z