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On the metric dimension of affine planes, biaffine planes and generalized quadrangles
Daniele Bartoli, György Kiss, 2018, izvirni znanstveni članek

Ključne besede: dimension, affine plane, biaffine plane
Objavljeno: 21.01.2019; Ogledov: 9; Prenosov: 6
.pdf Polno besedilo (213,22 KB)
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Enumeration of matrices with prohibited bounded sub-windows
Robert Jajcay, Tatiana Bagin Jajcay, Marián Opial, 2018, objavljeni znanstveni prispevek na konferenci

Ključne besede: enumeration, matrix, sub-window
Objavljeno: 21.01.2019; Ogledov: 13; Prenosov: 2
URL Polno besedilo (0,00 KB)

A note on special local 2-nilpotent groups and the solvability of finite groups
Jiangtao Shi, Klavdija Kutnar, Cui Zhang, 2018, izvirni znanstveni članek

Ključne besede: quaternion group, 2-nilpotent group, solvable group
Objavljeno: 21.01.2019; Ogledov: 17; Prenosov: 3
URL Polno besedilo (0,00 KB)

Design methods for semi-bent functions
Enes Pašalić, Sugata Gangopadhyay, WeiGuo Zhang, Samed Bajrić, 2019, izvirni znanstveni članek

Opis: Semi-bent functions play an important role in the construction of orthogonal variable spreading factor codes used in code-division multiple-access (CDMA) systems as well as in certain cryptographic applications. In this article we provide several infinite classes of semi-bent functions, where each class is characterized by either a different decomposition of such a function with respect to the Walsh spectra of its subfunctions, or by the method used for its derivation. In particular, we also give the exact number of possibilities of decomposing bent functions, in a subclass of the Maiorana-McFarland class.
Ključne besede: cryptography, Boolean functions, bent functions, semi-bent functions, derivatives
Objavljeno: 19.12.2018; Ogledov: 258; Prenosov: 6
URL Polno besedilo (0,00 KB)

Inherited unitals in Moulton planes
Gábor Korchmáros, Angelo Sonnino, Tamás Szönyi, 2018, izvirni znanstveni članek

Opis: We prove that every Moulton plane of odd order-by duality every generalised André plane-contains a unital. We conjecture that such unitals are non-classical, that is, they are not isomorphic, as designs, to the Hermitian unital. We prove our conjecture for Moulton planes which differ from PG(2, q2) by a relatively small number of point-line incidences. Up to duality, our results extend previous analogous results-due to Barwick and Grünin-concerning inherited unitals in Hall planes.
Ključne besede: Unital, Moulton plane, Hermitian
Objavljeno: 19.12.2018; Ogledov: 122; Prenosov: 6
URL Polno besedilo (0,00 KB)

On derivatives of planar mappings and their connections to complete mappings
Amela Muratović-Ribić, Enes Pašalić, 2018, izvirni znanstveni članek

Opis: Given are necessary conditions for a permutation polynomial to be the derivative of a planar mapping. These conditions are not sufficient and there might exist permutation polynomials which are not derivatives of some planar mapping satisfying these conditions. For the first time we show that there is a close connection between two seemingly unrelated structures, namely planar and complete mappings. It is shown that any planar mapping induces a sequence of complete mappings having some additional interesting properties. Furthermore, a class of almost planar mappings over extension fields is introduced having the property that its derivatives are permutations in most of the cases. This class of functions then induces many infinite classes of complete mappings (permutations) as well.
Ključne besede: planar mapping, derivatives, complete mappings, permutation polynomials
Objavljeno: 19.12.2018; Ogledov: 134; Prenosov: 6
URL Polno besedilo (0,00 KB)

Human interaction with wood - what to measure, how to measure?
Anna Malgorzata Sandak, Jakub Michal Sandak, Agnieszka Landowska, Veronika Kotradyova, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: wood perception, wearable sensors, preference test
Objavljeno: 18.12.2018; Ogledov: 156; Prenosov: 5
URL Polno besedilo (0,00 KB)

Can modified wood compete with untreated wood in preference of people?
Dean Lipovac, Michael David Burnard, Andreja Kutnar, Anna Malgorzata Sandak, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: wood modification, perception, evaluation, preference, well-being
Objavljeno: 18.12.2018; Ogledov: 114; Prenosov: 6
URL Polno besedilo (0,00 KB)

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