Results 151 to 160 of about 111,899 (306)
Theory of Speed and Power Factor Control of Large Induction Motors by Neutralized Polyphase Alternating-Current Commutator Machines [PDF]
, 1920 John I. Hull
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Topology, 1967 Abstract : A map of countable CW-complex into a topological group is discussed regarding its homotopy-commutative properties. Proofs are offered for six theorems with correlaries and lemmas. ad-259 8779N6 AD-259 878Div. 26, 17, 1 (21 July 61) Ministry of AviaAD-259 878Div. 26, 17, 1 (21 July 61) Ministry of Aviation (Gt. Brit.).
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Compactness of the commutator of bilinear Fourier multiplier operator
, 2014 Let $b_1, b_2 \in {\rm CMO}(\mathbb{R}^n)$ and $T_{\sigma}$ be the bilinear Fourier multiplier operator with associated multiplier $\sigma$ satisfies the Sobolev regularity that $\sup_{\kappa\in \mathbb{Z}}\|\sigma_{\kappa}\|_{W^{s_1,\,s_2}(\mathbb{R ...
G. Hu
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Pathological computations of Mackey functor‐valued Tor over cyclic groups
Bulletin of the London Mathematical Society, EarlyView.Abstract In equivariant algebra, Mackey functors play the role of abelian groups and Green and Tambara functors play the role of commutative rings. In this paper, we compute Mackey functor‐valued Tor over certain free Green and Tambara functors, generalizing the computation of Tor over a polynomial ring on one generator.
David Mehrle +2 more
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Residually nilpotent groups of homological dimension 1
Bulletin of the London Mathematical Society, EarlyView.Abstract If p$p$ is a prime number, then any free group is residually a finite p$p$‐group and has homological dimension 1. As a partial converse of this assertion, in this paper we show that any finitely generated group of homological dimension 1, which is residually a finite p$p$‐group, is free.
Ioannis Emmanouil
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The weak Lefschetz property for artinian Gorenstein algebras
Bulletin of the London Mathematical Society, EarlyView.Abstract It is an extremely elusive problem to determine which standard artinian graded K$K$‐algebras satisfy the weak Lefschetz property (WLP). Codimension 2 artinian Gorenstein graded K$K$‐algebras have the WLP and it is open to what extent such result might work for codimension 3 artinian Gorenstein graded K$K$‐algebras.
Rosa M. Miró‐Roig
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A note on local formulae for the parity of Selmer ranks
Bulletin of the London Mathematical Society, EarlyView.Abstract In this note, we provide evidence for a certain ‘twisted’ version of the parity conjecture for Jacobians, introduced in prior work of Dokchitser, Green, Konstantinou and the author. To do this, we use arithmetic duality theorems for abelian varieties to study the determinant of certain endomorphisms acting on p∞$p^\infty$‐Selmer groups.
Adam Morgan
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Concerning the commutator subgroups of groups whose orders are powers of primes [PDF]
, 1902 William Benjamin Fite
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