98 citations · 2.6k across the 134 of their papers we have counts for
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Harmonic Space Construction of the Quaternionic Taub-NUT metric
Evgeny Ivanov, Galliano Valent
We present details of the harmonic space construction of a quaternionic extension of the four-dimensional Taub-NUT metric. As the main merit of the harmonic space approach, the met…
Quaternionic Taub-NUT from the harmonic space approach
Evgeny Ivanov, Galliano Valent
We use the harmonic space technique to construct explicitly a quaternionic extension of the Taub-NUT metric. It depends on two parameters, the first being the Taub-NUT `mass' and t…
N=2 Rigid Supersymmetry with Gauged Central Charge
N. Dragon, E. Ivanov, S. Kuzenko +2
We develop a general setting for N=2 rigid supersymmetric field theories with gauged central charge in harmonic superspace. We consider those N=2 multiplets which have a finite num…
Central Charge as the Origin of Holomorphic Effective Action in N=2 Gauge Theory
E. I. Buchbinder, I. L. Buchbinder, E. A. Ivanov +1
We explicitly demonstrate that the perturbative holomorphic contribution to the off-shell effective action of N=2 U(1) gauge supermultiplet is an entire effect of the minimal coupl…
Modifying N=2 Supersymmetry via Partial Breaking
Evgeny Ivanov, Boris Zupnik
We study realization of N=2 SUSY in N=2 abelian gauge theory with electric and magnetic terms within a manifestly supersymmetric formulation. We find that after dualization of…