activity
20132025
most citedA^1-connected components of ruled surfaces

6 citations · 19 across the 12 of their papers we have counts for

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13 papers · 1 filter

math.AG2025

Transfers on -connected components of quasi-split groups and the norm principle

Amit Hogadi, Anand Sawant

We show that the sheaf of -connected components of a quasi-split group over a perfect field is a strictly -invariant sheaf with (Voevodsky) transfers. As…

math.AG2024

Tame and curve-tame cohomology of -invariant étale sheaves

Sandeep S, Anand Sawant

We extend the definition of the unramified curve-tame cohomology groups to -invariant étale sheaves under some additional hypotheses. We define a pairing of this grou…

math.AG2022★ 1 cited

Strong -invariance of -connected components of reductive algebraic groups

Chetan Balwe, Amit Hogadi, Anand Sawant

We show that the sheaf of -connected components of a reductive algebraic group over a perfect field is strongly -invariant. As a consequence, torsors unde…

math.AG2021★ 3 cited

Remarks on iterations of the -chain connected components construction

Chetan Balwe, Bandna Rani, Anand Sawant

We show that the sheaf of -connected components of a Nisnevich sheaf of sets and its universal -invariant quotient (obtained by iterating the $\mathbb A^1…

math.AG2021

Geometric criteria for -connectedness and applications to norm varieties

Chetan Balwe, Amit Hogadi, Anand Sawant

We show that -connectedness of a large class of varieties over a field can be characterized as the condition that their generic point can be connected to a -rat…

math.AG2020★ 2 cited

Cellular -homology and the motivic version of Matsumoto's theorem

Fabien Morel, Anand Sawant

We define a new version of -homology, called cellular -homology, for smooth schemes over a field that admit an increasing filtration by open subschemes wi…

math.AG2020★ 1 cited

Naive -homotopies on ruled surfaces

Chetan Balwe, Anand Sawant

We explicitly describe the -chain homotopy classes of morphisms from a smooth henselian local scheme into a smooth projective surface, which is birationally ruled over…

math.AG2019★ 6 cited

A^1-connected components of ruled surfaces

Chetan Balwe, Anand Sawant

A conjecture of Morel asserts that the sheaf of -connected components of a space is -invariant. Using purely algebro-geometric methods, we determine the s…

math.AG2017

Rost nilpotence and étale motivic cohomology

Andreas Rosenschon, Anand Sawant

A smooth projective scheme over a field is said to satisfy the Rost nilpotence principle if any endomorphism of in the category of Chow motives that vanishes on an exte…

math.AG2017

Naive vs. genuine A^1-connectedness

Anand Sawant

We show that the triviality of sections of the sheaf of A^1-chain connected components of a space over finitely generated separable field extensions of the base field is not suffic…

math.AG2016

A^1-connectedness in reductive algebraic groups

Chetan Balwe, Anand Sawant

Using sheaves of A^1-connected components, we prove that the Morel-Voevodsky singular construction on a reductive algebraic group fails to be A^1-local if the group does not satisf…

math.AG2014★ 1 cited

R-equivalence and A^1-connectedness in anisotropic groups

Chetan Balwe, Anand Sawant

We show that if G is an anisotropic, semisimple, absolutely almost simple, simply connected group over a field k, then two elements of G over any field extension of k are R-equival…

math.AG2013★ 5 cited

A^1-connected components of schemes

Chetan Balwe, Amit Hogadi, Anand Sawant

A conjecture of Morel asserts that the sheaf of A^1-connected components of a simplicial sheaf X is A^1-invariant. A conjecture of Asok-Morel asserts that A^1-connected components…