We investigate the relation between subleading soft graviton theorem and asymptotic symmetries in gravity even dimensions $d=2+2m$ higher than four. After rewriting as a Ward identity, we argue that charges of such identity generate Diff$(S^{2m})$. In order to show that, propose suitable commutation among certain components metric fields. As result, all Diff$(S^{2m})$ transformations are gravit...

Recently, Maschietti [6] constructed several families of (2m− 1, 2m−1− 1, 2m−2− 1) cyclic difference sets from monomial hyperovals. In this correspondence, we consider the binary sequences associated to the difference sets constructed by Maschietti. We give algebraic proof of the fact that these sequences have two-level autocorrelation functions, also we discuss the linear spans of these sequen...

Let B(2m,m) be the set of all bicyclic graphs on 2m(m ≥ 2) vertices with perfect matchings. In this paper, we characterize the bicyclic graphs with minimal number of matchings and maximal number of independent sets in B(2m,m). 2010 Mathematics Subject Classification: 05C69, 05C05

The Daudi cell line is a B-lymphoblastoid line derived from a Burkitt lymphoma. Daudi cells lack cell surface expression of class I HLA molecules despite the presence of intracellular class I heavy chains. They have a defect in the gene encoding beta 2-microglobulin (beta 2m), resulting in lack of translatable mRNA for this protein. It has been thought that this deficiency is responsible for th...

OBJECTIVE Neutrophil elastase accounts for the ability of some fresh rheumatoid synovial fluids to degrade cartilage matrix in vitro. The aim of this study was to determine if enzyme activity could result from depletion of synovial fluid inhibitors or protection of the enzyme from inhibition. METHODS The ability of synovial fluids to inhibit porcine pancreatic elastase was investigated togeth...

A snake-in-the-box code (or snake) of word length n is a simple circuit in an n-dimensional cube Qn , with the additional property that any two non-neighboring words in the circuit differ in at least two positions. To construct such snakes a straightforward, non-recursive method is developed based on special linear codes with minimum distance 4. An extension of this method is used for the const...