Results 31 to 40 of about 6,108,164 (292)
Model-Checking Problems as a Basis for Parameterized Intractability [PDF]
Logical Methods in Computer Science, 2005 Most parameterized complexity classes are defined in terms of a parameterized version of the Boolean satisfiability problem (the so-called weighted satisfiability problem). For example, Downey and Fellow's W-hierarchy is of this form.
Joerg Flum, Martin Grohe
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A Machian solution of the hierarchy problem [PDF]
The European Physical Journal C, 2008 The new interpretation of Mach's principle of mass of a particle being a measure of the interactions of this particle with all other gravitating particles inside its causal spheres is introduced. It is shown that within some alternative model of gravitation that incorporates this principle, the Machian influence of the universe can reduce Planck's ...
openaire +3 more sources
ifct2017/hierarchy: Tree-like hierarchy of nutrients, and its components
, 2022 Tree-like hierarchy of nutrients, and its components. Node.js, Files. This is part of package ifct2017. Online database: ifct2017.github.io. const hierarchy = require('@ifct2017/hierarchy'); // hierarchy(query) // → {parents, ancestry, children} if ...
Subhajit Sahu
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Optimization problems and the polynomial hierarchy
Theoretical Computer Science, 1981 AbstractIt is demonstrated that such problems as the symmetric Travelling Salesman Problem, Chromatic Number Problem, Maximal Clique Problem and a Knapsack Packing Problem are in the ΔP2 level of PH and no lower if ∑P1 ≠ ΠP1, or NP≠co-NP. This shows that these problems cannot be solved by polynomial reductions that use only positive information from an
E. W. Leggett Jr., Daniel J. Moore
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Solving bi-directional soliton equations in the KP hierarchy by gauge transformation [PDF]
, 2006 We present a systematic way to construct solutions of the (n = 5)-reduction of the BKP and CKP hierarchies from the general τ function τn+k of the KP hierarchy.
Cheng, Yi +4 more
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On the hierarchy problem of particle physics
, 2023 This paper attempts to delve into the hierarchy problem of particle physics taking into consideration the Calabi-Yau manifolds and D(p)-Branes.
Deep Bhattacharjee (11209005)
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The real gauge hierarchy problem
Physics Letters B, 1981 Abstract We discuss the problem of generating two vastly different mass scales through spontaneous symmetry breaking. We find that to all orders in perturbation theory this can only be achieved if there is a non-trivial relation between the couplings of the theory.
Smith, C, Ross, G
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Solving the Least Squares Method problem in the AHP for 3 X 3 and 4 X 4 matrices [PDF]
, 2005 The Analytic Hierarchy Process (AHP) is one of the most popular methods used in Multi-Attribute Decision Making. The Eigenvector Method (EM) and some distance minimizing methods such as the Least Squares Method (LSM) are of the possible tools for ...
Bozóki, Sándor
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A Conservation Law Treatment of Nonlinear KdV Hierarchies
Journal of Mathematics, 2022 We study the hierarchy commonly defined as an infinite sequence of partial differential equations which begins with the Korteweg–de Vries equation and its modified version. An important feature of the hierarchy is its highly nonlinear property.
Sameerah Jamal, Rivoningo Maphanga
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An Infinitely Old Universe with Planck Fields Before and After the Big Bang
UniverseThe Robertson–Walker minimum length (RWML) theory considers stochastically perturbed spacetime to describe an expanding universe governed by geometry and diffusion.
Dragana Pilipović
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