Results 11 to 20 of about 617,770 (183)

Families of Group Actions, Generic Isotriviality, and Linearization [PDF]

open access: yes, 2014
We study families of reductive group actions on A2 parametrized by curves and show that every faithful action of a non-finite reductive group on A3 is linearizable, i.e. G-isomorphic to a representation of G.
Kraft, Hanspeter, Russell, Peter
core   +1 more source

Degree bounds for separating invariants [PDF]

open access: yes, 2010
If V is a representation of a linear algebraic group G, a set S of G-invariant regular functions on V is called separating if the following holds: If two elements v,v' from V can be separated by an invariant function, then there is an f from S such that ...
Kohls, Martin, Kraft, Hanspeter
core   +3 more sources

A dynamic programming approach to constrained portfolios [PDF]

open access: yes, 2011
This paper studies constrained portfolio problems that may involve constraints on the probability or the expected size of a shortfall of wealth or consumption.
Kraft, Holger, Steffensen, Mogens
core   +1 more source

In Situ Hybridization of Pulp Fibers Using Mg-Al Layered Double Hydroxides

open access: yesFibers, 2015
Inorganic Mg2+ and Al3+ containing layered double hydroxide (LDH) particles were synthesised in situ from aqueous solution onto chemical pulp fibers of pine (Pinus sylvestris).
Carl-Erik Lange   +5 more
doaj   +1 more source

Indeterminate-length quantum coding [PDF]

open access: yes, 2000
The quantum analogues of classical variable-length codes are indeterminate-length quantum codes, in which codewords may exist in superpositions of different lengths. This paper explores some of their properties.
A. R. Calderbank   +18 more
core   +2 more sources

Reducing Hydrophilic Characteristics of Kraft Paper Insulation by Reinforcing With Surface Modified Rutile-TiO2 Nanoparticles

open access: yesIEEE Access, 2022
The hydrophilic nature of cellulose compromises the dielectric properties of kraft paper insulation when exposed to water and moisture. The effort to address this setback is an ongoing research enquiry.
Mohammed K. Mahmood   +3 more
doaj   +1 more source

Varieties Characterized by their Endomorphisms [PDF]

open access: yes, 2013
We show that two varieties X and Y with isomorphic endomorphism semigroups are isomorphic up to field automorphism if one of them is affine and contains a copy of the affine line. A holomorphic version of this result is due to the first author.Comment: 8
Andrist, Rafael, Kraft, Hanspeter
core   +2 more sources

Photoelectrochemical conversion of lignin to hydrogen: Lignin as an electron donor

open access: yesCatalysis Communications, 2021
The effect of pH, concentration, and membrane thickness on the performance of a photoelectrochemical (PEC) cell using kraft lignin as a reactant was studied at 25 °C.
Jaelynne King, Steven S.C. Chuang
doaj   +1 more source

The Kraft sum as a monotone function on the refinement-ordered set of uniquely decipherable codes [PDF]

open access: yes, 2013
The set of all uniquely decipherable (UD) codes is partially ordered by re nement, meaning that all strings in the cruder code can be represented as con- catenations of strings taken from the ner code.
Foldes, Stephan
core   +2 more sources

A Comparison of the Influence of Kraft Lignin and the Kraft Lignin/Silica System as Cell Carriers on the Stability and Efficiency of the Anaerobic Digestion Process

open access: yesEnergies, 2020
This study compares the effects of pure kraft lignin and the kraft lignin/silica system (1:4 by weight). The comparative analysis of the physicochemical properties of both carriers showed that the kraft lignin/silica system was characterised by better ...
Agnieszka A. Pilarska   +4 more
doaj   +1 more source

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