Results 31 to 40 of about 1,701 (167)

Topological structure of optimal flows on the Girl's surface

Pracì Mìžnarodnogo Geometričnogo Centru, 2023
We investigate the topological structure of flows on the Girl's surface which is one of two possible immersions of the projective plane in three-dimensional space with one triple point of self-intersection.
Alexandr Prishlyak, Maria Loseva
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Projective characterization of higher-order quantum transformations [PDF]

Quantum
Transformations of transformations, also called higher-order transformations, is a natural concept in information processing, which has recently attracted significant interest in the study of quantum causal relations.
Timothée Hoffreumon, Ognyan Oreshkov
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Classes of modules closed under projective covers

Open Mathematics
In this work, we study some classes of modules closed under submodules, quotients, and projective covers, even if the left projective cover of an arbitrary left module not always exists. We obtain a characterization of artinian principal ideal rings when
Cejudo-Castilla César, García-Ramírez Ángel Raúl, Montalvo Ivan Fernando Vilchis   +2 more
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Weights of the $\mathbb{F}_{q}$-forms of $2$-step splitting trivectors of rank $8$ over a finite field

Karpatsʹkì Matematičnì Publìkacìï, 2019
Grassmann codes are linear codes associated with the Grassmann variety $G(\ell,m)$ of $\ell$-dimensional subspaces of an $m$ dimensional vector space $\mathbb{F}_{q}^{m}.$ They were studied by Nogin for general $q.$ These codes are conveniently described
M.A. Rakdi, N. Midoune
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On certain classes of Galois extensions of rings

International Journal of Mathematics and Mathematical Sciences, 2001
Relations between the following classes of Galois extensions are given: (1) centrally projective Galois extensions (CP-Galois extensions), (2) faithfully Galois extensions, and (3) H-separable Galois extensions.
George Szeto, Lianyong Xue
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Operator representation of weakly Cauchy sequences in projective tensor products of Banach spaces

International Journal of Mathematics and Mathematical Sciences, 1980
It is shown that the above sequences always determine linear transformations and if the sequences are bounded under the least cross norm, that the transformations are continuous.
J. M. Baker
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Minimal resolutions of graded modules over an exterior algebra

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
Let K be a field, E the exterior algebra of a n-dimensional K-vector space V. We study projective and injective resolutions over E. More precisely, given a category M of finitely generated Z-graded left and right E-modules, we give upper bounds for the ...
Luca Amata, Marilena Crupi
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Equivalence Relations Between Conical 2-Designs and Mutually Unbiased Generalized Equiangular Tight Frames

Mathematics
Quantum measurements play a fundamental role in quantum information. Therefore, increasing efforts are being made to construct symmetric measurement operators for qudit systems.
Katarzyna Siudzińska
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Some New Components of the Moduli Scheme MP3(2; -1; 2; 0) of Stable Coherent Torsion Free Sheaves of Rank 2 on P3

Моделирование и анализ информационных систем, 2015
In this paper we consider Giseker-Maruyama moduli scheme M := MP3(2;¡1; 2; 0) of stable coherent torsion free sheaves of rank 2 with Chern classes c1 = -1, c2 = 2, c3 = 0 on 3-dimensional projective space P3.
M. A. Zavodchikov
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On some interpretation of linear frames in projective differential geometry

Дифференциальная геометрия многообразий фигур, 2018
The centroprojective group, i. e. the stabilizer G of a fixed point A in the group GP(n) of projective transformations of n-dimensional projective space Pn (n > 1) is considered in the paper. Two faithful representations of the linear quotient group of G
A. Kuleshov
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