Morse sequences
<|reference_start|>Morse sequences: We introduce the notion of a Morse sequence, which provides a simple and effective approach to discrete Morse theory. A Morse sequence is a sequence composed solely of two elementary operations, that is, expansions (the inverse of a collapse), and fillings (the inverse of a perforation). We show that a Morse sequence may be seen as an alternative way to represent the gradient vector field of an arbitrary discrete Morse function. We also show that it is possible, in a straightforward manner, to make a link between Morse sequences and different kinds of Morse functions. At last, we introduce maximal Morse sequences, which formalize two basic schemes for building a Morse sequence from an arbitrary simplicial complex.<|reference_end|>
@article{bertrand2024morse,
    title={Morse sequences},
    author={Gilles Bertrand (LIGM)},
    journal={International Conference on Discrete Geometry and Mathematical
  Morphology (DGMM), Apr 2024, Florence, Italy},
    year={2024},
    archivePrefix={arXiv},
    eprint={2402.07526},
    primaryClass={cs.CV}
}