Results 151 to 160 of about 10,716 (231)

A Finite-Word Obstruction to Nontrivial Cycles in the 3n+1 Problem

open access: yes
This paper presents a finite arithmetic obstruction to nontrivial cycles in the 3n+1 problem. It studies the odd-to-odd inverse Collatz map by assigning each finite sequence of dyadic exponents, called a directed word, to a rigid residue thread in the odd integers.
openaire   +3 more sources

The 3N Model and collective support for extreme measures to combat COVID-19. [PDF]

open access: yesPLoS One
Milla MN   +6 more
europepmc   +1 more source

Inferring three-nucleon couplings from multi-messenger neutron-star observations. [PDF]

open access: yesNat Commun
Somasundaram R   +7 more
europepmc   +1 more source

Probabilistic Forecasting for Coarse-Grained Molecular Dynamics. [PDF]

open access: yesJ Chem Theory Comput
Christians LF, Wojnar A, Pak AJ.
europepmc   +1 more source

The Traveling Salesman Problem for Lines, Balls, and Planes

open access: yes, 2016
"We revisit the traveling salesman problem with neighborhoods (TSPN) and propose several new approximation algorithms. These constitute either first approximations (for hyperplanes, lines, and balls in Rd, for d ⩾ 3) or improvements over previous ...
Adrian Dumitrescu, Csaba D. Tóth
core  

Considerations in designing a cybernetic simple 'learning' model; and an overview of the problem of modelling learning

open access: yes, 1988
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Learning is viewed as a central feature of living systems and must be manifested in any artifact that claims to exhibit general intelligence.
Der-Kureghian, Emin
core  

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