Results 41 to 50 of about 733,709 (66)

IDEMPOTENT ELEMENTS OF PRE-GENERALIZED HYPERSUBSTITUTIONS OF TYPE (m, n)

, 2016
A generalized hypersubstitution of type τ = (m, n) is a mapping σ which maps the m-ary operation symbol f and n-ary operation symbol g to the term σ(f) and σ(g), and may not preserved arities.
Jampachon, Prakit, Lekkoksung, Nareupanat   +1 more
core  

The order of hypersubstitutions of type tau = (3)

, 2006
Hypersubstitutions were introduced in [3] as a way of making precise the concepts of hyperidentity and M- hyperidentity. The monoid of hypersubstitutions has been widely studied by many authors.
Changphas, Thawhat
core  

Application of a Modified Generalized Regression Neural Networks Algorithm in Economics and Finance [PDF]

, 2011
In this paper we propose an alternative and modified Generalized Regression Neural Networks Autoregressive model (GRNN-AR) in S&P 500 and FTSE 100 index returns, as also in Gross domestic product growth rate of Italy, USA and UK. We compare the forecasts
Giovanis, Eleftherios
core  

Sheaves of nonlinear generalized functions and manifold-valued distributions

, 2009
This paper is part of an ongoing program to develop a theory of generalized differential geometry. We consider the space G[X,Y] of Colombeau generalized functions defined on a manifold X and taking values in a manifold Y. This space is essential in order
Steinbauer, Roland, Michael Kunzinger, James A. Vickers, Vickers, James A., Kunzinger, Michael, Roland Steinbauer   +5 more
core   +1 more source

Differentiable generalized inverses

, 1968
Necessary and sufficient conditions are given for a differentiable matrix to have a differentiable generalized inverse. It is shown that when these conditions are met there exist, for several classes of generalized inverses, a differentiable generalized ...
Hearon, John Z.; Evans, John W.
core   +1 more source

On ternary monoid of hypersubstitutions of type ? = (n)

, 2019
A ternary monoid of hypersubstitutions of type ? = (n) is the set Hyp(n) of all hypersubstitutions of type ? = (n) with a ternary operation which satis es the associative law, and has the identity element ?id . For n = 2 , the idempotent and
Jawatankuasa Kerja PSM UPM 3
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SOME PROPERTIES OF GENERALIZED FULL HYPERSUBSTITUTIONS

Far East Journal of Mathematical Sciences, 2016
Nareupanat Lekkoksung
exaly   +2 more sources

Semigroups of Terms, Tree Languages, Menger Algebra of n-Ary Functions and Their Embedding Theorems

Symmetry, 2021
The concepts of terms and tree languages are significant tools for the development of research works in both universal algebra and theoretical computer science.
Sorasak Leeratanavalee, Thodsaporn Kumduang   +1 more
exaly   +2 more sources

GREEN’S RELATION R ON THE MONOID OF GENERALIZED HYPERSUBSTITUTIONS OF TYPE \tau = (n, n)

JP Journal of Algebra, Number Theory and Applications, 2018
exaly   +2 more sources

EQUATIONAL THEORIES GENERATED BY HYPERSUBSTITUTIONS OF TYPE (n)

International Journal of Algebra and Computation, 2002
Hypersubstitutions map n-ary operation symbols to n-ary terms. Such mappings can be uniquely extended to mappings defined on the set of all terms. It turns out that the kernels of hypersubstitutions are fully invariant congruence relations on the (absolutely free) term algebra of the considered type. For an arbitrary type τ = (n), n ≥ 1, i.e.
Klaus Denecke, Jörg Koppitz, Staszek Niwczyk   +2 more
openaire   +1 more source