Results 61 to 70 of about 1,404 (193)

Bidiagonal Decompositions and High‐Accuracy Computations for Newton Collocation Matrices

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 4, August 2026.
ABSTRACT We consider a class of collocation matrices A$$ A $$ associated with the Newton basis of the space of polynomials of degree at most n$$ n $$, evaluated at a set of l+1≥n+1$$ l+1\ge n+1 $$ nodes. In the most general setting, we allow n$$ n $$ of these nodes to either coincide with or differ from those defining the Newton basis.
E. Mainar, A. Marco, B. Rubio, R. Viaña
wiley   +1 more source

Solving Least-Squares Problems via a Double-Optimal Algorithm and a Variant of the Karush–Kuhn–Tucker Equation for Over-Determined Systems

open access: yesAlgorithms
A double optimal solution (DOS) of a least-squares problem Ax=b,A∈Rq×n with q≠n is derived in an m+1-dimensional varying affine Krylov subspace (VAKS); two minimization techniques exactly determine the m+1 expansion coefficients of the solution x in the ...
Chein-Shan Liu   +2 more
doaj   +1 more source

The Last Line

open access: yes
Critical Quarterly, EarlyView.
Beci Carver
wiley   +1 more source

Basic income trials and the politics of scale: A research agenda

open access: yesPolicy Studies Journal, Volume 54, Issue 3, August 2026.
Abstract The growing popularity of basic income has led to extensive trials of the policy in numerous settings across the world. However, analysis of the politics of basic income, and in particular the political dynamics preceding and resulting from trial programs, lags. In response, we propose a research agenda that uses political scale to investigate
Jurgen De Wispelaere   +2 more
wiley   +1 more source

Algebraic attack on NTRU using Witt vectors and Gröbner bases

open access: yesJournal of Mathematical Cryptology, 2009
We present an algebraic attack on NTRU (restricted to the case where the parameter q is a power of two) using the method of the Witt vectors proposed by Silverman, Smart and Vercauteren [Springer: 278–298, 2005]; the latter considered only the first two ...
Bourgeois Gérald, Faugère Jean-Charles
doaj   +1 more source

A generalization of the method of averages for overdetermined linear systems [PDF]

open access: yesMathematics of Computation, 1975
Necessary and sufficient conditions are established for an existence and uniqueness result for a generalization of the method of averages for overdetermined linear systems. Some practical schemes are given, and a connection with Galerkin’s method is indicated.
openaire   +1 more source

Jorge Luis Borges' Medieval Aesthetics of Failure

open access: yes
Critical Quarterly, EarlyView.
Irina Dumitrescu
wiley   +1 more source

Thermal Planar and Radial Free Jets for An Ostwald‐de Waele Fluid With Shear‐Rate Dependent Thermal Diffusivity

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 10, Page 10312-10333, 15 July 2026.
ABSTRACT The planar and radial thermal free jets for forced convection of a non‐Newtonian power‐law fluid are investigated. The thermal diffusivity is dependent on the shear‐rate and is not a constant. The flow in planar and radial thermal free jets is governed by the momentum, continuity and energy balance equations. In the stream‐function formulation,
Avnish Bhowan Magan, Rehana Naz
wiley   +1 more source

Exact Solutions to a Model for Micropolar Fluid Flows with Rayleigh Energy Dissipation

open access: yesPhysics
Polynomial exact solutions of the Navier–Stokes equations for describing micropolar incompressible fluid flows with energy dissipation are reported. The transformation of mechanical energy into thermal energy is taken into account.
Evgenii Yu. Prosviryakov   +3 more
doaj   +1 more source

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