Let $X$ be a smooth projective quadric defined over field of characteristic 2. We prove that in the Chow group codimension 2 or 3 torsion subgroup has at most two elements. In 2, we determine precisely when this is nontrivial. 3, show there no if $\dim X\ge 11$. This extends analogous results different from obtained by Karpenko nineteen-nineties.

abstract background: iron overload is a clinical consequence of repeated blood transfusions and causes significant organ damage, morbidity, and mortality in the absence of proper treatment. the primary targets of iron chelators used for treating transfusional iron overload are the prevention of iron ingress into tissues and its intracellular scavenging. the present study was aimed at elucidatin...

This note is about a certain 16-dimensional family of surfaces general type with pg = 2 and q = 0 K2 = 1, called “special Horikawa surfaces”. These surfaces, studied by Pearlstein–Zhang Garbagnati, are related to K3 surfaces. We show that special have multiplicative Chow–Kunneth decomposition, in the sense Shen–Vial. As consequence, Chow ring displays K3-like behavior.

We prove that every curve on a separably rationally connected variety is rationally equivalent to a (non-effective) integral sum of rational curves. That is, the Chow group of 1-cycles is generated by rational curves. Applying the same technique, we also show that the Chow group of 1-cycles on a separably rationally connected Fano complete intersections of index at least 2 is generated by lines...

We prove the result in the title for Noetherian fppf stacks, avoiding the use of Chow’s lemma. Instead we employ simplicial schemes and

‘ONSIDERABLE empirical work and a significant, but considerably smaller, volume of theoretical effort has been devoted to the question of the short-run, dynamic adjustment of the demand for money. Much of the impetus for the empirical work came from the classic study by Chow (1966), who employed the partial adjustment model to characterize the adjustment of actual to desired real money balances.