activity
19972005
most citedThe sextonions and

4 citations · 5 across the 5 of their papers we have counts for

collaborators

14 papers

math.AG20051 cited

Fubini's Theorem in codimension two

J. M. Landsberg, Colleen Robles

We classify codimension two analytic submanifolds X of projective space having the property that any line through a general point p having contact to order two with X at p automati…

math.AG2004

Legendrian varieties

J. M. Landsberg, L. Manivel

We investigate the geometry of Legendrian complex projective manifolds $X\subset\PP V$. By definition, this means is a complex vector space of dimension , endowed with a…

math.RT20044 cited

The sextonions and

J. M. Landsberg, L. Manivel

We fill in the "hole" in the exceptional series of Lie algebras that was observed by Cvitanovic, Deligne, Cohen and deMan. More precisely, we show that the intermediate Lie algebra…

math.AG2002

Series of nilpotent orbits

J. M. Landsberg, L. Manivel, B. W. Westbury

We organize the nilpotent orbits in the exceptional complex Lie algebras into series using the triality model and show that within each series the dimension of the orbit is a linea…

math.AG2002

Griffiths-Harris rigidity of compact Hermitian symmetric spaces

J. M. Landsberg

I show that any complex manifold that resembles a rank two compact Hermitian symmetric space (other than a quadric hypersurface) to order two at a general point must be an open sub…

math.AG2002

Series of Lie Groups

J. M. Landsberg, L. Manivel

For various series of complex semi-simple Lie algebras $\fg (t)$ equipped with irreducible representations , we decompose the tensor powers of into irreducible factors…