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Related papers: The Riemann-Roch theorem in a singular setting

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The classical arithmetic Grothendieck-Riemann-Roch theorem can be applied only to projective morphisms that are smooth over the complex numbers. In this paper we generalize the arithmetic Grothendieck-Riemann-Roch theorem to the case of…

Algebraic Geometry · Mathematics 2012-11-09 José Ignacio Burgos Gil , Gerard Freixas i Montplet , Razvan Litcanu

We prove the Riemann-Roch theorem for homotopy invariant $K$-theory and projective local complete intersection morphisms between finite dimensional noetherian schemes, without smoothness assumptions. We also prove a new Riemann-Roch theorem…

K-Theory and Homology · Mathematics 2016-05-04 Alberto Navarro

We give a short proof that any smooth (means formally smooth and finitely presented) homomorphism of rings can be obtained by base change from a smooth homomorphism of noetherian rings. Together with the elegant short proof by J. Conde-Lago…

Commutative Algebra · Mathematics 2023-05-26 Nitin Nitsure

In this lecture we review apprearance of the Riemann-Roch Theorem in classical function theory, Algebraic topology, in theory of pseudo-differential operators and finally in noncommutative geometry. We show also it usefulness in many…

Operator Algebras · Mathematics 2007-05-23 Do Ngoc Diep

In this paper we give a simplified proof of the flat Grothendieck-Riemann-Roch theorem. The proof makes use of the local family index theorem and basic computations of the Chern-Simons form. In particular, it does not involve any adiabatic…

Differential Geometry · Mathematics 2016-07-06 Man-Ho Ho

We give a new proof of the Adams-Riemann-Roch theorem for a smooth projective morphism $X\to Y$, in the situation where $Y$ is a regular scheme, which is quasi-projective over $\mF_p$. We also partially answer a question of B. K\"ock.

Algebraic Geometry · Mathematics 2009-03-18 R. Pink , D. Rössler

Let $S$ be a finite dimensional noetherian scheme. For any proper morphism between smooth $S$-schemes, we prove a Riemann-Roch formula relating higher algebraic $K$-theory and motivic cohomology, thus with no projective hypothesis neither…

Algebraic Topology · Mathematics 2017-05-31 A. Navarro , J. Navarro

We prove Grothendieck's existence theorem for relatively perfect complexes on an algebraic stack that is proper and flat over an $I$-adically complete Noetherian ring $A$. This generalizes an earlier result of Lieblich in the setting of…

Algebraic Geometry · Mathematics 2021-05-18 David Benjamin Lim

The Riemann-Roch Theorem is one of the cornerstones of algebraic geometry, connecting algebraic data (sheaf cohomology) with geometric ones (intersection theory). This survey paper provides a self-contained introduction and a complete proof…

Algebraic Geometry · Mathematics 2025-11-19 Giacomo Graziani

The purpose of this paper is to prove an equivariant Riemann-Roch theorem for schemes or algebraic spaces with an action of a linear algebraic group $G$. For a $G$-space $X$, this theorem gives an isomorphism between a completion of the…

Algebraic Geometry · Mathematics 2016-09-07 Dan Edidin , William Graham

In this paper, we prove the real part of the Riemann-Roch-Grothendieck theorem for complex flat vector bundles at the differential form level.

Differential Geometry · Mathematics 2024-05-22 Man-Ho Ho

We prove two refinements of the higher Riemann-Roch without denominators: a statement for regular closed immersions between arbitrary finite dimensional noetherian schemes, with no smoothness assumptions, and a statement for the relative…

K-Theory and Homology · Mathematics 2019-01-29 Alberto Navarro

A wide generalization of the classical theorem of A. Grothendieck asserting that for any faithfully flat extension of commutative rings, the corresponding relative Picard group and the Amitsur 1-cohomology group with values in the…

Rings and Algebras · Mathematics 2007-05-23 Bachuki Mesablishvili

In this paper, we prove a Lefschetz-Riemann-Roch theorem for singular projective schemes which admit diagonalisable group scheme actions, this result generalizes P. Baum, W. Fulton and G. Quart's Lefschetz-Riemann-Roch theorem for singular…

Algebraic Geometry · Mathematics 2025-12-16 Runqiao Fu , Shun Tang

We give an elementary short proof of Grothendieck's base change theorem for the cohomology of flat coherent sheaves.

Algebraic Geometry · Mathematics 2013-12-30 Eduardo Tengan

In this paper, we prove the functorial Riemann-Roch theorem in positive characteristic for a smooth and projective morphism with any relative dimension. In the case of relative dimension $1$, we have given an analogue with Deligne's…

Algebraic Geometry · Mathematics 2018-09-24 Quan Xu

We show that, in characteristic zero, the obvious integral version of the Grothendieck-Riemann-Roch formula obtained by clearing the denominators of the Todd and Chern characters is true (without having to divide the Chow groups by their…

Algebraic Geometry · Mathematics 2009-11-13 G. Pappas

This paper proves an integral version of the Riemann-Roch theorem for surface bundles, comparing the standard cohomology classes with the cohomology classes coming from the symplectic group.

Algebraic Topology · Mathematics 2009-01-28 Ib Madsen

We use the formalism of traces in higher categories to prove a common generalization of the holomorphic Atiyah-Bott fixed point formula and the Grothendieck-Riemann-Roch theorem. The proof is quite different from the original one proposed…

Algebraic Geometry · Mathematics 2019-06-27 Grigory Kondyrev , Artem Prikhodko

The first part of this paper develops a geometric setting for differential-difference equations that resolves an open question about the extent to which continuous symmetries can depend on discrete independent variables. For general…

Mathematical Physics · Physics 2022-04-26 Linyu Peng , Peter E Hydon
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