Zobrazeno 1 - 10
of 485
pro vyhledávání: '"Sverrisdottir IS"'
We investigate determinantal varieties for symmetric matrices that have zero blocks along the main diagonal. In theoretical physics, these arise as Gram matrices for kinematic variables in quantum field theories. We study the ideals of relations amon
Externí odkaz:
http://arxiv.org/abs/2411.08624
We study algebraic varieties that encode the kinematic data for $n$ massless particles in $d$-dimensional spacetime subject to momentum conservation. Their coordinates are spinor brackets, which we derive from the Clifford algebra associated to the L
Externí odkaz:
http://arxiv.org/abs/2408.16711
The exploration of the root structure of coupled cluster equations holds both foundational and practical significance for computational quantum chemistry. This study provides insight into the intricate root structures of these non-linear equations at
Externí odkaz:
http://arxiv.org/abs/2405.12238
We determine the number of complex solutions to a nonlinear eigenvalue problem on the Grassmannian in its Pl\"ucker embedding. This is motivated by quantum chemistry, where it represents the truncation to single electrons in coupled cluster theory. W
Externí odkaz:
http://arxiv.org/abs/2310.15474
We develop algebraic geometry for coupled cluster (CC) theory of quantum many-body systems. The high-dimensional eigenvalue problems that encode the electronic Schr\"odinger equation are approximated by a hierarchy of polynomial systems at various le
Externí odkaz:
http://arxiv.org/abs/2308.05258
The projective variety of Lie algebra structures on a 4-dimensional vector space has four irreducible components of dimension 11. We compute their prime ideals in the polynomial ring in 24 variables. By listing their degrees and Hilbert polynomials,
Externí odkaz:
http://arxiv.org/abs/2208.14631
Autor:
Sigrun Einarsdottir, Ingigerdur Sverrisdottir, Mariana Villegas-Scivetti, Chris Day, Ingemar Turesson, Gunnar Juliusson, Markus Hansson, Gunnar Larfors, Cecilie Hveding Blimark
Publikováno v:
Haematologica, Vol 999, Iss 1 (2024)
Not available.
Externí odkaz:
https://doaj.org/article/667df72b9c3b47ba9072e0dd768471af
Publikováno v:
In Journal of Symbolic Computation May-June 2025 128
Autor:
Sæmundur Rögnvaldsson, Sigrun Thorsteinsdóttir, Elisavet Syriopoulou, Ingigerdur Sverrisdottir, Ingemar Turesson, Elias Eythorsson, Jon Thorir Oskarsson, Thorir Einarsson Long, Brynjar Vidarsson, Pall Torfi Onundarson, Bjarni A. Agnarsson, Margret Sigurdardottir, Isleifur Olafsson, Ingunn Thorsteinsdottir, Thor Aspelund, Gauti Kjartan Gislason, Andri Olafsson, Jon Kristinn Sigurdsson, Malin Hultcrantz, Brian G. M. Durie, Stephen Harding, Magnus Bjorkholm, Ola Landgren, Thorvardur Jon Love, Sigurdur Yngvi Kristinsson
Publikováno v:
Haematologica, Vol 999, Iss 1 (2024)
There is some evidence that a prior cancer is a risk factor for the development of multiple myeloma (MM). If this is true, prior cancer should be associated with higher prevalence or increased progression rate of monoclonal gammopathy of undetermined
Externí odkaz:
https://doaj.org/article/b4d0bc525d9543f3ba4f7528d6b41d55
Autor:
Einarsdottir, Sigrun, Sverrisdottir, Ingigerdur, Vaht, Krista, Bergström, Tomas, Brune, Mats, Andersson, P.-O., Wenneras, Christine, Ljungman, Per
Publikováno v:
In Transplantation and Cellular Therapy January 2023