2 citations · 4 across the 9 of their papers we have counts for
9 papers
On the normality of commuting scheme for general linear Lie algebra
Artan Sheshmani, Xiaopeng Xia, Beihui Yuan
The commuting scheme for reductive Lie algebra over an algebraically closed field is the subscheme of $\mathfrak{g}^{d…
The sharpness condition for constructing a finite element from a superspline
Jun Hu, Ting Lin, Qingyu Wu +1
This paper addresses sharpness conditions for constructing conforming finite element spaces from a superspline spaces on general simplicial triangulations. We introduce the c…
Planar splines on a triangulation with a single totally interior edge
Michael DiPasquale, Beihui Yuan
We derive an explicit formula, valid for all integers , for the dimension of the vector space of piecewise polynomial functions continuously differentiable to…
Multivariate polynomial splines on generalized oranges
Maritza Sirvent, Tatyana Sorokina, Nelly Villamizar +1
We consider spaces of multivariate splines defined on a particular type of simplicial partitions that we call (generalized) oranges. Such partitions are composed of a finite number…
An algebraic framework for geometrically continuous splines
Angelos Mantzaflaris, Bernard Mourrain, Nelly Villamizar +1
Geometrically continuous splines are piecewise polynomial functions defined on a collection of patches which are stitched together through transition maps. They are called -…
Quaternary quartic forms and Gorenstein rings
Gregorz Kapustka, Michał Kapustka, Kristian Ranestad +3
A quaternary quartic form, a quartic form in four variables, is the dual socle generator of an Artinian Gorenstein ring of codimension and regularity 4. We present a classification…
Calabi-Yau threefolds in and Gorenstein rings
Hal Schenck, Mike Stillman, Beihui Yuan
A projectively normal Calabi-Yau threefold has an ideal which is arithmetically Gorenstein, of Castelnuovo-Mumford regularity four. Such ideals hav…
A new bound for smooth spline spaces
Hal Schenck, Mike Stillman, Beihui Yuan
For a planar simplicial complex Delta contained in R^2, Schumaker proved that a lower bound on the dimension of the space C^r_k(Delta) of planar splines of smoothness r and polynom…
An upper bound on the first homology of spline complexes
Beihui Yuan
Let be a connected, pure -dimensional simplicial complex embedded in and let be the homogenized spline module of with smoothness . To st…