Results 1 to 10 of about 7,890,386 (291)

Quasi-projective dimension [PDF]

open access: yesPacific Journal of Mathematics, 2019
In this paper, we introduce a new homological invariant called quasi-projective dimension, which is a generalization of projective dimension. We discuss various properties of quasi-projective dimension. Among other things, we prove the following.
Mohsen Gheibi   +2 more
semanticscholar   +5 more sources

Algebraic invariants of the edge ideals of whisker graphs of cubic circulant graphs [PDF]

open access: yesHeliyon
Let Q be a polynomial ring over a field F and I be an edge ideal associated with the whisker graph of a cubic circulant graph. We discuss the regularity, depth, Stanley depth, and projective dimension of Q/I.
Mujahid Ullah Khan Afridi   +2 more
doaj   +2 more sources

Geometry-Constrained Learning-Based Visual Servoing with Projective Homography-Derived Error Vector [PDF]

open access: yesSensors
We propose a novel geometry-constrained learning-based method for camera-in-hand visual servoing systems that eliminates the need for camera intrinsic parameters, depth information, and the robot’s kinematic model.
Yueyuan Zhang   +5 more
doaj   +2 more sources

Projective dimension and Castelnuovo-Mumford regularity of t-spread ideals [PDF]

open access: yesInternational journal of algebra and computation, 2022
In this paper, we study some algebraic invariants of [Formula: see text]-spread ideals, [Formula: see text], such as the projective dimension and the Castelnuovo–Mumford regularity, by means of well-known graded resolutions.
Luca Amata, M. Crupi, A. Ficarra
semanticscholar   +1 more source

Big Finitistic Dimensions for Categories of Quiver Representations [PDF]

open access: yesMathematics Interdisciplinary Research, 2021
Assume that A is a Grothendieck category and R is the category of all A-representations of a given quiver Q. If Q is left rooted and A has a projective generator, we prove that the big finitistic flat (resp. projective) dimension FFD(A) (resp. FPD(A)) of
Roghayeh Bagherian, Esmaeil Hosseini
doaj   +1 more source

Certifying dimension of quantum systems by sequential projective measurements [PDF]

open access: yesQuantum, 2021
This work analyzes correlations arising from quantum systems subject to sequential projective measurements to certify that the system in question has a quantum dimension greater than some $d$.
Adel Sohbi   +3 more
doaj   +1 more source

S-FP-Projective Modules and Dimensions

open access: yesJournal of Mathematics, 2023
Let R be a ring and let S be a multiplicative subset of R. An R-module M is said to be a u-S-absolutely pure module if ExtR1N,M is u-S-torsion for any finitely presented R-module N. This paper introduces and studies the notion of S-FP-projective modules,
Refat Abdelmawla Khaled Assaad   +2 more
doaj   +1 more source

Fractal Dimension of Fractal Functions on the Real Projective Plane

open access: yesFractal and Fractional, 2023
In this article, we consider an iterated functions system on the non-Euclidean real projective plane which has a linear structure. Then, we study the fractal dimension of the associated curve as a subset of the projective space and like a set of the ...
Alamgir Hossain   +2 more
doaj   +1 more source

Homological dimension based on a class of Gorenstein flat modules

open access: yesComptes Rendus. Mathématique, 2023
In this paper, we study the relative homological dimension based on the class of projectively coresolved Gorenstein flat modules (PGF-modules), that were introduced by Saroch and Stovicek in [26].
Dalezios, Georgios, Emmanouil, Ioannis
doaj   +1 more source

On Generation of the Groups $SL_n(\mathbb{Z}+i\mathbb{Z})$ and $PSL_n(\mathbb{Z}+i\mathbb{Z})$ by Three Involutions, Two of Which Commute

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
M. C. Tamburini and P. Zucca proved that the special linear group of dimension greater than 13 over the ring of Gaussian integers is generated by three involutions, two of which commute (J. of Algebra, 1997).
R. I. Gvozdev   +2 more
doaj   +1 more source

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