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Related papers: On the derived category of $\mathrm{IGr}(3,8)$

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We construct a full exceptional collection of vector bundles in the derived category of coherent sheaves on the Grassmannian of isotropic two-dimensional subspaces in a symplectic vector space of dimension $2n$ and in the derived category…

Algebraic Geometry · Mathematics 2014-02-26 Alexander Kuznetsov

We construct a mininal Lefschetz decomposition of the bounded derived category of coherent sheaves on the isotropic Grassmannian $\mathsf{IGr}(3,7)$. Moreover, we show that $\mathsf{IGr}(3, 7)$ admits a full exceptional collection…

Algebraic Geometry · Mathematics 2025-06-13 Anton Fonarev

We construct a full exceptional collection consisting of vector bundles in the derived category of coherent sheaves on the so-called Cayley Grassmannian, the subvariety of the Grassmannian $\mathrm{Gr}(3, 7)$ parameterizing 3-subspaces that…

Algebraic Geometry · Mathematics 2022-06-30 Lyalya Guseva

We construct a minimal Lefschetz decomposition of the bounded derived category of the odd isotropic Grassmannian $\mathsf{IGr}(3,9)$. The exceptional objects are $\mathsf{Sp}_9$-equivariant vector bundles. This provides further evidence of…

Algebraic Geometry · Mathematics 2023-05-12 Warren Cattani

We introduce a new construction of exceptional objects in the derived category of coherent sheaves on a compact homogeneous space of a semisimple algebraic group and show that it produces exceptional collections of the length equal to the…

Algebraic Geometry · Mathematics 2018-09-05 Alexander Kuznetsov , Alexander Polishchuk

We construct a Lefschetz exceptional collection of vector bundles in the bounded derived category of coherent sheaves of the adjoint/coadjoint Grassmannian of type $E_6$ of dimension $21$.

Algebraic Geometry · Mathematics 2023-04-03 Valentin Boboc

We introduce a class of equivariant vector bundles on isotropic symplectic Grassmannians $\mathrm{IGr}(k,2n)$ defined as appropriate truncations of staircase complexes and show that these bundles can be assembled into a number of complexes…

Algebraic Geometry · Mathematics 2024-12-05 Alexander Novikov

Consider a Grassmannian $\mathrm{Gr}(2, V)$ for an even-dimensional vector space $V$. Its derived category of coherent sheaves has a Lefschetz exceptional collection with respect to the Pl\"ucker embedding. We consider a variety $X_1$ of…

Algebraic Geometry · Mathematics 2024-07-15 Dmitrii Pirozhkov

We calculate a semi-orthogonal decomposition of the bounded derived category of coherent sheaves on P(1,1,1,3) using a tilting bundle.

Algebraic Geometry · Mathematics 2021-01-11 Yujiro Kawamata

In this paper we study the derived categories of coherent sheaves on Grassmannians $\operatorname{Gr}(k,n),$ defined over the ring of integers. We prove that the category $D^b(\operatorname{Gr}(k,n))$ has a semi-orthogonal decomposition,…

Algebraic Geometry · Mathematics 2025-02-10 Alexander I. Efimov

The derived category of bounded complexes of coherent sheaves is one of the most important algebraic invariants of a smooth projective variety. An important approach to understand derived categories is to construct full strongly exceptional…

Algebraic Geometry · Mathematics 2010-10-19 L. Costa , S. Di Rocco , R. M. Miro-Roig

We construct full exceptional collections of vector bundles on the Lagrangian Grassmannians LG(4,8) and LG(5,10).

Algebraic Geometry · Mathematics 2009-10-14 Alexander Polishchuk , Alexander Samokhin

In this paper we prove first a general theorem on semiorthogonal decompositions in derived categories of coherent sheaves for flat families over a smooth base. Based on the results of math.AG/0510670, we then show that the derived…

Algebraic Geometry · Mathematics 2007-05-23 Alexander Samokhin

We produce full strong exceptional collections consisting of vector bundles on the geometric invariant theory quotient of certain linear actions of a split reductive group $G$ of rank two. The vector bundles correspond to irreducible…

Algebraic Geometry · Mathematics 2025-10-28 Daniel Halpern-Leistner , Kimoi Kemboi

Let X be an algebraic variety with an action of an algebraic group G. Suppose X has a full exceptional collection of sheaves, and these sheaves are invariant under the action of the group. We construct a semiorthogonal decomposition of…

Algebraic Geometry · Mathematics 2015-05-13 Alexei Elagin

We utilize the coherent-constructible correspondence to construct full strongly exceptional collections of nef line bundles in the derived category of a toric variety through the combinatorics of constructible sheaves built from polytopes.…

Algebraic Geometry · Mathematics 2023-11-08 Mario Sanchez

We construct a new category of vector spaces which contains both the standard category of vector spaces and Grassmannians. Its space of objects classifies vector bundles, its space of morphisms classifies bundle isomorphisms, and it can be…

Algebraic Topology · Mathematics 2017-11-09 Yi-Sheng Wang

We define and discuss some general properties of residual categories of Lefschetz decompositions in triangulated categories. In the case of the derived category of coherent sheaves on the Grassmannian $\text{G}(k,n)$ we conjecture that the…

Algebraic Geometry · Mathematics 2019-09-25 Alexander Kuznetsov , Maxim Smirnov

We propose a conjecture on the structure of the bounded derived category of coherent sheaves of the moduli space rank $2$ parabolic bundles on $\mathbb{P}^1$.

Algebraic Geometry · Mathematics 2025-06-13 Anton Fonarev

We discuss what is known about the structure of the bounded derived categories of coherent sheaves on Grassmannians of simple algebraic groups.

Algebraic Geometry · Mathematics 2025-06-13 Anton Fonarev
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