Results 21 to 30 of about 4,350 (203)

Learning with Interactive Knowledge Representations

Applied Sciences, 2023
Computers are promising tools for providing educational experiences that meet individual learning needs. However, delivering this promise in practice is challenging, particularly when automated feedback is essential and the learning extends beyond using ...
B. Bredeweg, Marco Kragten, Joanna Holt, P. Kruit, Tom van Eijck, M. Pijls, A. Bouwer, Malou Sprinkhuizen, Emile Jaspar, Muriel E. de Boer   +9 more
semanticscholar   +1 more source

Covariant mutually unbiased bases

, 2015
The connection between maximal sets of mutually unbiased bases (MUBs) in a prime-power dimensional Hilbert space and finite phase-space geometries is well known. In this article we classify MUBs according to their degree of covariance with respect to the
Carmeli, Claudio, Schultz, Jussi, Toigo, Alessandro   +2 more
core   +1 more source

Discrete Torsion, Covering Groups and Quiver Diagrams [PDF]

, 2000
Without recourse to the sophisticated machinery of twisted group algebras, projective character tables and explicit values of 2-cocycles, we here present a simple algorithm to study the gauge theory data of D-brane probes on a generic orbifold G with ...
Feng, Bo, Hanany, Amihay, He, Yang-Hui, Prezas, Nikolaos   +3 more
core   +5 more sources

Fourier theory and C*-algebras [PDF]

, 2016
We discuss a number of results concerning the Fourier series of elements in reduced twisted group C∗-algebras of discrete groups, and, more generally, in reduced crossed products associated to twisted actions of discrete groups on unital C∗-algebras. A
Conti, Roberto, Erik, Bédos
core   +1 more source

Covariance systems

, 2000
We introduce new definitions of states and of representations of covariance systems. The GNS-construction is generalized to this context. It associates a representation with each state of the covariance system.
Bargmann V, Bratteli O, Busby R C, Doplicher S, Doplicher S, Hagen C R, Hagen C R, Jan Naudts, Landsman N P, Levy-Leblond J-M, Maciej Kuna, Moyal J E, Naudts J, Naudts J, Petz D, Rieffel M A, Takesaki M, Wigner E P   +17 more
core   +3 more sources

Coupling of two conformal field theories and Nakajima-Yoshioka blow-up equations [PDF]

, 2015
We study the conformal vertex algebras which naturally arise in relation to the Nakajima-Yoshioka blow-up equations.Comment: 23 pages v2.
Bershtein, M., Feigin, B., Litvinov, A.
core   +1 more source

Homogeneous $2$-shifts

, 2018
The classification of homogeneous scalar weighted shifts is known. Recently, Kor\'{a}nyi obtained a large class of inequivalent irreducible homogeneous bi-lateral $2$-by-$2$ block shifts.
Hazra, Somnath
core   +1 more source

The Quantum Galilei Group

, 1995
The quantum Galilei group $G_{\varkappa}$ is defined. The bicrossproduct structure of $G_{\varkappa}$ and the corresponding Lie algebra is revealed. The projective representations for the two-dimensional quantum Galilei group are constructed.Comment ...
Giller, S., Gonera, C., Kosiński, P., Maślanka, P.   +3 more
core   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Nonunital spectral triples and metric completeness in unbounded KK-theory [PDF]

, 2015
By considering the general properties of approximate units in differentiable algebras, we are able to present a unified approach to characterising completeness of spectral metric spaces, existence of connections on modules, and the lifting of Kasparov ...
Adam Rennie, Akemann, Arias, Baaj, Baaj, Baum, Blackadar, Blecher, Blecher, Blecher, Blecher, Blecher, Bourne, Brain, Bram Mesland, Carey, Carey, Christensen, Connes, Connes, Cuntz, Durand-Cartagena, Effros, Forsyth, Forsyth, Frank, Gayral, Goffeng, Higson, Higson, Hilsum, Kaad, Kaad, Kaad, Kaad, Kasparov, Kasparov, Krähmer, Kucerovsky, Kucerovsky, Lance, Latrémolière, Latrémolière, Lord, Mesland, Meyer, Palmer, Pierrot, Rennie, Rieffel, Senior, Weaver, Wood, Woronowicz   +53 more
core   +3 more sources