98 citations · 665 across the 29 of their papers we have counts for
3 papers · 1 filter
N=4, d=1 supermultiplets from nonlinear realizations of D(2,1;α)
Evgeny Ivanov, Sergey Krivonos, Olaf Lechtenfeld
Proceeding from nonlinear realizations of the most general N=4, d=1 superconformal symmetry associated with the supergroup D(2,1;α), we construct all known and two new off-shell N=…
Nilpotent deformations of N=2 superspace
Evgeny Ivanov, Olaf Lechtenfeld, Boris Zupnik
We investigate deformations of four-dimensional N=(1,1) euclidean superspace induced by nonanticommuting fermionic coordinates. We essentially use the harmonic superspace approach…
Noncommutative Monopoles and Riemann-Hilbert Problems
Olaf Lechtenfeld, Alexander D. Popov
The Bogomolny equations for Yang-Mills-Higgs monopoles follow from a system of linear equations which may be solved through a parametric Riemann-Hilbert problem. We extend this app…