Results 21 to 30 of about 4,433 (184)

Local Euler obstructions for determinantal varieties [PDF]

open access: yesTopology and its Applications, 2022
19 pages.
Lőrincz, András C., Raicu, Claudiu
openaire   +2 more sources

On minimality of determinantal varieties [PDF]

open access: yesLinear Algebra and its Applications, 2021
We prove that semialgebraic sets of rectangular matrices of a fixed rank, of skew-symmetric matrices of a fixed rank and of real symmetric matrices whose eigenvalues have prescribed multiplicities are minimal submanifolds of the space of real matrices of a given size.
openaire   +4 more sources

Determinantal varieties over truncated polynomial rings

open access: yesJournal of Pure and Applied Algebra, 2005
29 pages, 1 ...
Košir, Tomaž, Sethuraman, B.A.
openaire   +3 more sources

Linear codes associated to determinantal varieties

open access: yesDiscrete Mathematics, 2015
We consider a class of linear codes associated to projective algebraic varieties defined by the vanishing of minors of a fixed size of a generic matrix. It is seen that the resulting code has only a small number of distinct weights. The case of varieties defined by the vanishing of 2 x 2 minors is considered in some detail.
BEELEN, P, GHORPADE, SR, UL HASAN, S
openaire   +3 more sources

Geometric rank and linear determinantal varieties

open access: yesEuropean Journal of Mathematics, 2023
There are close relations between tripartite tensors with bounded geometric ranks and linear determinantal varieties with bounded codimensions. We study linear determinantal varieties with bounded codimensions, and prove upper bounds of the dimensions of the ambient spaces.
openaire   +2 more sources

Homological projective duality for determinantal varieties

open access: yesAdvances in Mathematics, 2016
23 pages.
Bernardara, Marcello   +2 more
openaire   +5 more sources

Determinantal variety and normal embedding [PDF]

open access: yesJournal of Topology and Analysis, 2017
The space [Formula: see text] of matrices of positive determinant inherits an extrinsic metric space structure from [Formula: see text]. On the other hand, taking the infimum of the lengths of all paths connecting a pair of points in [Formula: see text] gives an intrinsic metric.
Katz, K.   +3 more
openaire   +2 more sources

Determinantal Varieties From Point Configurations on Hypersurfaces

open access: yesInternational Mathematics Research Notices, 2023
Abstract We consider the scheme $X_{r,d,n}$ parameterizing $n$ ordered points in projective space $\mathbb {P}^{r}$ that lie on a common hypersurface of degree $d$. We show that this scheme has a determinantal structure, and we prove that it is irreducible, Cohen–Macaulay, and normal.
Caminata A., Moon H. B., Schaffler L.
openaire   +5 more sources

Psychological Safety Among Interprofessional Pediatric Oncology Teams in Germany: A Nationwide Survey

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn   +4 more
wiley   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

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