Structural constants. I
نویسندگان
چکیده
منابع مشابه
Locality of Connective Constants, I. Transitive Graphs
The connective constant μ(G) of a quasi-transitive graph G is the exponential growth rate of the number of self-avoiding walks from a given origin. We prove a locality theorem for connective constants, namely, that the connective constants of two graphs are close in value whenever the graphs agree on a large ball around the origin. The proof exploits a generalized bridge decomposition of self-a...
متن کاملHigh-loop perturbative renormalization constants for Lattice QCD (I): finite constants for Wilson quark currents
We present a high order perturbative computation of the renormalization constants ZV , ZA and of the ratio ZP/ZS for Wilson fermions. The computational setup is the one provided by the RI’-MOM scheme. Threeand four-loop expansions are made possible by Numerical Stochastic Perturbation Theory. Results are given for various numbers of flavours and/or (within a finite accuracy) for generic nf up t...
متن کاملDimensional structural constants from chiral and conformal bosonization of QCD
We derive the dimensional non-perturbative part of the QCD e ective action for scalar and pseudoscalar meson elds by means of chiral and conformal bosonization. The related structural coupling constants L5 and L8 of the chiral lagrangian are estimated using general relations which are valid in a variety of chiral bosonization models without explicit reference to model parameters. The asymptotic...
متن کاملTHE ULTRASONIC MEASUREMENf OF ELASTIC CONSTANTS OF STRUCTURAL FRP COMPOSITES
Interestin fiber reinforced polymeric (FRP) composites for structural highway applications has generated the need for reliable techniques which may be used to measure all of the elastic constants of these materials. Mechanical techniques may only be used to measure some of the engineering constants of these anisotropic materials due to the geometry of the pultruded members. Further, mechanical ...
متن کاملPacking and covering constants for certain families of trees. I
In an earlier paper we considered the problem of determining the packing and covering constants for families of trees whose generating function^ satisfied a relation y = x(y) for some power series itiy. In the present paper we consider the problem for some families of trees whose generating functions satisfy a more complicated relation.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Algebra
سال: 1973
ISSN: 0021-8693
DOI: 10.1016/0021-8693(73)90019-7