49 citations · 310 across the 27 of their papers we have counts for
5 papers · 1 filter
Hyperkähler cones and instantons on quaternionic Kähler manifolds
Chandrashekar Devchand, Massimiliano Pontecorvo, Andrea Spiro
We present a novel approach to the study of Yang-Mills instantons on quaternionic Kähler manifolds, based on an extension of the harmonic space method of constructing instantons on…
Instantons on hyperkähler manifolds
Chandrashekar Devchand, Massimiliano Pontecorvo, Andrea Spiro
An instanton on a (pseudo-)hyperkähler manifold is a vector bundle associated to a principal -bundle with a connection whose curvature is pointwise invarian…
On pseudo-hyperkähler prepotentials
Chandrashekar Devchand, Andrea Spiro
An explicit surjection from a set of (locally defined) unconstrained holomorphic functions on a certain submanifold of (Sp_1(C) \times C^{4n}) onto the set HK_{p,q} of local isomet…
Special Graphs
Chandrashekar Devchand, Jean Nuyts, Gregor Weingart
A special p-form is a p-form which, in some orthonormal basis {e_μ}, has components ϕ_{μ_1...μ_p} = ϕ(e_{μ_1},..., e_{μ_p}) taking values in {-1,0,1}. We discuss graphs which chara…
Yang-Mills connections over manifolds with Grassmann structure
Dmitri V. Alekseevsky, Vicente Cortés, Chandrashekar Devchand
Let M be a manifold with Grassmann structure, i.e. with an isomorphism of the cotangent bundle T^*M\cong E\otimes H with the tensor product of two vector bundles E and H. We define…