16 citations · 47 across the 41 of their papers we have counts for
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New Identities for Degrees of Syzygies in Numerical Semigroups
Leonid G. Fel
We derive a set of polynomial and quasipolynomial identities for degrees of syzygies in the Hilbert series H(d^m;z) of nonsymmetric numerical semigroups S(d^m) of arbitrary generat…
Effects of Material Symmetry on the Coefficients of Transport in Anisotropic Porous Media
Jacob Bear, Leonid G. Fel, Yoram Zimmels
The objective of this article is to highlight certain features of a number of coefficients that appear in models of phenomena of transport in anisotropic porous media, especially t…
Dispersion and Dispersivity Tensors in Saturated Porous Media with Uniaxial Symmetry
Leonid G. Fel, Jacob Bear
The coefficients of dispersion, D_{ij}, and the dispersivity, a_{ijkl}, appear in the expression for the flux of a solute in saturated flow through porous media. We present a detai…
On Numerical Experiments with Symmetric Semigroups Generated by Three Elements and Their Generalization
Leonid G. Fel
We give a simple explanation of numerical experiments of V. Arnold with two sequences of symmetric numerical semigroups, S(4,6+4k,87-4k) and S(9,3+9k,85-9k) generated by three elem…