Abstract

For a given block design D, we consider two isomorphism invariants, the eccentric sequences and the triangle sequences of some special graphs of D. Among other results we show that these invariants can often be used effectively, as far as computational complexity is concerned, in isomorphism testing of designs. Several unsolved problems are also proposed.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.