Hodge loci associated with linear subspaces intersecting in codimension one
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DOI: 10.1002/mana.202400066
Abstract: Let X⊂P2k+1$X\subset \mathbf {P}^{2k+1}$ be a smooth hypersurface containing two k$k$ ‐dimensional linear spaces Π1,Π2$\Pi _1,\Pi _2$ , such that dimΠ1∩Π2=k−1$\dim \Pi _1\cap \Pi _2=k-1$ . In this paper, we study the question whether the… read more here.
Keywords: loci associated; operatorname; associated linear; operatorname lambda ... See more keywords
A BETTER COMPARISON OF - AND -COHOMOLOGIES
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DOI: 10.1017/nmj.2019.24
Abstract: In order to work with non-Nagata rings which are Nagata “up-to-completely-decomposed-universal-homeomorphism,” specifically finite rank Hensel valuation rings, we introduce the notions of pseudo-integral closure, pseudo-normalization, and pseudo-Hensel valuation ring. We use this notion to give… read more here.
Keywords: better comparison; operatorname; cdh; comparison cohomologies ... See more keywords
Vector Fields and Automorphism Groups of Danielewski Surfaces
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DOI: 10.1093/imrn/rnaa189
Abstract: In this paper, we study the Lie algebra of vector fields ${\operatorname{Vec}}(\textrm{D}_p)$ of a smooth Danielewski surface $\textrm{D}_p$. We prove that the Lie subalgebra $\langle{\operatorname{LNV}}(\textrm{D}_p) \rangle$ of ${\operatorname{Vec}}(\textrm{D}_p)$ generated by locally nilpotent vector fields is… read more here.
Keywords: danielewski surfaces; textrm; automorphism; operatorname ... See more keywords
A Derivation of the First Generation Particle Masses from Internal Spacetime
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DOI: 10.1142/s0219887825503050
Abstract: Internal spacetime geometry was recently introduced to model certain quantum phenomena using spacetime metrics that are degenerate. We use the Ricci tensors of these metrics to derive a ratio of the bare up and down… read more here.
Keywords: operatorname; quark masses; operatorname mev; internal spacetime ... See more keywords
On weighted compactness of commutators of bilinear maximal Calderón–Zygmund singular integral operators
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DOI: 10.1515/forum-2020-0357
Abstract: Abstract Let T be a bilinear Calderón–Zygmund singular integral operator and let T*{T^{*}} be its corresponding truncated maximal operator. For any b∈BMO(ℝn){b\in\operatorname{BMO}({\mathbb{R}^{n}})} and b→=(b1,b2)∈BMO(ℝn)×BMO(ℝn){\vec{b}=(b_{1},b_{2})\in\operatorname{BMO}({\mathbb{R}^{n}})\times% \operatorname{BMO}({\mathbb{R}^{n}})}, let Tb,j*{T^{*}_{b,j}} (j=1,2{j=1,2}) and Tb→*{T^{*}_{\vec{b}}} be the commutators in the… read more here.
Keywords: operatorname; mathbb; bmo; vec ... See more keywords
Isomorphism questions for metric ultraproducts of finite quasisimple groups
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DOI: 10.1515/jgth-2019-0165
Abstract: Abstract New results on metric ultraproducts of finite simple groups are established. We show that the isomorphism type of a simple metric ultraproduct of groups Xni(q){X_{n_{i}}(q)} (i∈I{i\in I}) for X∈{PGL,PSp,PGO(ε),PGU}{X\in\{\operatorname{PGL},\operatorname{PSp},\operatorname{PGO}^{(\varepsilon)% },\operatorname{PGU}\}} (ε=±{\varepsilon=\pm}) along an ultrafilter… read more here.
Keywords: metric ultraproduct; ultraproduct groups; operatorname; ultraproducts finite ... See more keywords
Augmenting graphs to partition their vertices into a total dominating set and an independent dominating set
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DOI: 10.7494/opmath.2025.45.2.179
Abstract: A graph \(G\) whose vertex set can be partitioned into a total dominating set and an independent dominating set is called a TI-graph. There exist infinite families of graphs that are not TI-graphs. We define… read more here.
Keywords: dominating; dominating set; operatorname; geq ... See more keywords