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20152026
most citedNon-existence of exceptional collections on twisted flags and categorical representability via noncommutative motives

8 citations · 15 across the 9 of their papers we have counts for

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9 papers · 1 filter

math.AG2020

Rationality of inner twisted flags of type

Sasa Novakovic

We prove that if is a rational inner twisted flag of type .

math.AG2017★ 2 cited

Rational points on symmetric powers and categorical representability

Saša Novaković

In this paper we observe that for geometrically integral projective varieties , admitting a full weak exceptional collection consisting of pure vector bundles, the existence of…

math.AG2017

No phantoms in the derived category of curves over arbitrary fields, and derived characterizations of Brauer-Severi varieties

Saša Novaković

In this paper we show that the derived category of Brauer-Severi curves satisfies the Jordan-Hölder property and cannot have quasi-phantoms, phantoms or universal phantoms. In this…

math.AG2016

Some remarks on rigid sheaves, helices and exceptional vector bundles on Fano varieties over arbitrary fields

Saša Novaković

In this paper we study the connection between rigid sheaves and separable-exceptional objects on Fano varieties over arbitrary fields. We give criteria for a rigid vector bundle on…

math.AG2016

On non-existence of full exceptional collections on some relative flags

Saša Novaković

In this paper we show that certain relative flags cannot have full exceptional collections. We also prove that some of these flags are categorical representable in dimension zero i…

math.AG2016★ 8 cited

Non-existence of exceptional collections on twisted flags and categorical representability via noncommutative motives

Saša Novaković

In this paper we prove that a finite product of Brauer--Severi varieties is categorical representable in dimension zero if and only if it admits a -rational point if and only if…

math.AG2015

Equivariant derived category of flat families

Saša Novaković

We prove the existence of tilting bundles on global quotient stacks that are produced by compatible finite group actions on flat families.

math.AG2015

Tilting objects on some global quotient stacks

Saša Novaković

We prove the existence of tilting objects on some global quotient stacks. As a consequence we provide further evidence for a conjecture on the Rouquier dimension of derived categor…

math.AG2015★ 5 cited

Absolutely split locally free sheaves on proper -schemes and Brauer--Severi varieties

Saša Novaković

We classify absolutely split vector bundles on proper -schemes. More precise, we prove that the closed points of the Picard scheme are in one-to-one correspondence with indecomp…