Seminars
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
Forthcoming seminars
Seminar calendar
List of seminars
Archive by years
Register a seminar

Search
RSS
Forthcoming seminars






2022-ary quasigroups and related topics
October 12, 2018 11:00–12:45, Novosibirsk, Sobolev Institute of Mathematics, room 135
 


MMS-type problems for Johnson scheme

I. Yu. Mogil'nykh, K. V. Vorob'ev, A. A. Valyuzhenich

Number of views:
This page:65

Abstract: In the current work we consider the minimization problems for the number of nonzero or negative values of vectors from the first and second eigenspaces of the Johnson scheme respectively. We obtain several new lower and upper bounds for these characteristics based on equitable partitions and properties of eigenspaces of the Johnson scheme. The topic is a meeting point for generalizations of the Manikam–Miklós–Singhi conjecture and the minimum support problem for the eigenspaces of the Johnson graph, asymptotically solved by authors in a recent paper.

Website: https://arxiv.org/abs/1810.04075

SHARE: VKontakte.ru FaceBook Twitter Mail.ru Livejournal Memori.ru
 
Contact us:
 Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2022