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Bibliographic Details
Main Authors: Laddha, Aditi, Pittu, Madhusudhan Reddy
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.08121
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Table of Contents:
  • Computing the permanent of a non-negative matrix is a computationally challenging, \#P-complete problem with wide-ranging applications. We introduce a novel permanental analogue of Schur's determinant formula, leveraging a newly defined \emph{permanental inverse}. Building on this, we introduce an iterative, deterministic procedure called the \emph{permanent process}, analogous to Gaussian elimination, which yields constructive and algorithmically computable upper bounds on the permanent. Our framework provides particularly strong guarantees for matrices exhibiting approximate diagonal dominance-like properties, thereby offering new theoretical and computational tools for analyzing and bounding permanents.