Zobrazeno 1 - 10
of 3 951
pro vyhledávání: '"Ruhland"'
Autor:
Ruhland, Helmut
3 families of 4-dimensional lattices $L_k, M_k, M_k / 2 \subset \mathbb{R}^2$ are defined. Each lattice is defined by 2 quadratic extensions and has a \emph{finite} number of unit vectors, but the number of unit vectors in each of the 3 familes is \e
Externí odkaz:
http://arxiv.org/abs/2410.16172
Autor:
Ruhland, Helmut
In a recently published article by G. Ambrus et al. a new upper bound for the density of an unit avoiding, periodic set is given as $0.2470$, the first upper bound $< 1/4$. A construction of Croft 1967 gave a lower bound $\delta_C = 0.22936$ for the
Externí odkaz:
http://arxiv.org/abs/2408.10076
Autor:
Ruhland, Helmut
The conditions for cubic equations, to have 3 real roots and 2 of the roots lie in the closed interval $[-1, 1]$ are given. These conditions are visualized. This question arises in physics in e.g. the theory of tops.
Comment: 10 pages, typos cor
Comment: 10 pages, typos cor
Externí odkaz:
http://arxiv.org/abs/2407.01827
Autor:
Ruhland, Helmut
The Somos-4 equation defines the sequences with this name. Looking at these sequences with an additional property we get a quartic polynomial in 4 variables. This polynomial defines a rational, projective surface in $\mathbb{RP}^{3}$. Here some gener
Externí odkaz:
http://arxiv.org/abs/2312.02085
Autor:
Lydia J. Fess, Ashley Fell, Siobhan O’Toole, Paige D’Heilly, Stacy Holzbauer, Leslie Kollmann, Amanda Markelz, Keeley Morris, Abbey Ruhland, Scott Seys, Elizabeth Schiffman, Haley Wienkes, Zachary Zirnhelt, Stephanie Meyer, Kathryn Como-Sabetti
Publikováno v:
Emerging Infectious Diseases, Vol 30, Iss 7, Pp 1352-1360 (2024)
Accurate and timely mortality surveillance is crucial for elucidating risk factors, particularly for emerging diseases. We compared use of COVID-19 keywords on death certificates alone to identify COVID-19 deaths in Minnesota, USA, during 2020–2022
Externí odkaz:
https://doaj.org/article/72b94aea66764a08a21457dcc972687f
Autor:
Adhikari, P., Ajaj, R., Alpízar-Venegas, M., Amaudruz, P. -A., Anstey, J., Araujo, G. R., Auty, D. J., Baldwin, M., Batygov, M., Beltran, B., Benmansour, H., Bina, C. E., Bonatt, J., Bonivento, W., Boulay, M. G., Broerman, B., Bueno, J. F., Burghardt, P. M., Butcher, A., Cadeddu, M., Cai, B., Cárdenas-Montes, M., Cavuoti, S., Chen, M., Chen, Y., Choudhary, S., Cleveland, B. T., Corning, J. M., Crampton, R., Cranshaw, D., Daughtery, S., DelGobbo, P., Dering, K., Di Stefano, P., DiGioseffo, J., Dolganov, G., Doria, L., Duncan, F. A., Dunford, M., Ellingwood, E., Erlandson, A., Farahani, S. S., Fatemighomi, N., Fiorillo, G., Florian, S., Flower, A., Ford, R. J., Gagnon, R., Gallacher, D., Abia, P. García, Garg, S., Giampa, P., Giménez-Alcázar, A., Goeldi, D., Golovko, V. V., Gorel, P., Graham, K., Grant, D. R., Grobov, A., Hallin, A. L., Hamstra, M., Harvey, P. J., Haskins, S., Hearns, C., Hu, J., Hucker, J., Hugues, T., Ilyasov, A., Jigmeddorj, B., Jillings, C. J., Joy, A., Kamaev, O., Kaur, G., Kemp, A., Kuźniak, M., La Zia, F., Lai, M., Langrock, S., Lehnert, B., Leonhardt, A., LePage-Bourbonnais, J., Levashko, N., Lidgard, J., Lindner, T., Lissia, M., Lock, J., Machulin, I., Majewski, P., Maru, A., Mason, J., McDonald, A. B., McElroy, T., McGinn, T., McLaughlin, J. B., Mehdiyev, R., Mielnichuk, C., Mirasola, L., Monroe, J., Nadeau, P., Nantais, C., Ng, C., Noble, A. J., O'Dwyer, E., Oliviéro, G., Ouellet, C., Pal, S., Papi, D., Pasuthip, P., Peeters, S. J. M., Perry, M., Pesudo, V., Picciau, E., Piro, M. -C., Pollmann, T. R., Rad, F., Rand, E. T., Rethmeier, C., Retière, F., García, I. Rodríguez, Roszkowski, L., Ruhland, J. B., Santorelli, R., Schuckman II, F. G., Seeburn, N., Seth, S., Shalamova, V., Singhrao, K., Skensved, P., Smith, N. J. T., Smith, B., Sobotkiewich, K., Sonley, T., Sosiak, J., Soukup, J., Stainforth, R., Stone, C., Strickland, V., Stringer, M., Sur, B., Tang, J., Vázquez-Jáuregui, E., Veloce, L., Viel, S., Vyas, B., Walczak, M., Walding, J., Ward, M., Westerdale, S., Willis, J., Zuñiga-Reyes, A.
Publikováno v:
Eur. Phys. J. C 83, 642 (2023)
The specific activity of the beta decay of $^{39}$Ar in atmospheric argon is measured using the DEAP-3600 detector. DEAP-3600, located 2 km underground at SNOLAB, uses a total of (3269 $\pm$ 24) kg of liquid argon distilled from the atmosphere to sea
Externí odkaz:
http://arxiv.org/abs/2302.14639
Quantum computing is a rapidly developing field in the second wave of quantum development, with the potential to revolutionize a wide range of industries and fields of study. As the capabilities of quantum computers continue to advance, they have the
Externí odkaz:
http://arxiv.org/abs/2303.05457
Autor:
Ruhland, Helmut
Two infinite families of Cremona maps depending on one real parameter are given. For all integers $n \ge 1$ the first family of Cremona maps consists of group elements in $Bir \left( \mathbb{P}^{n} \right)$ with bidegree $(n, n)$, the second family o
Externí odkaz:
http://arxiv.org/abs/2301.01834