نتایج جستجو برای: 2k symmetric conjugate points

تعداد نتایج: 386022  

Journal: :Transactions of the American Mathematical Society 2006

Journal: :Transactions of the American Mathematical Society 1974

Journal: :Differential Geometry and its Applications 1996

Journal: :Transactions of the American Mathematical Society 1977

Journal: :Communications in Contemporary Mathematics 2021

We obtain Margulis-type asymptotic estimates for the number of free homotopy classes closed geodesics on certain manifolds without conjugate points. Our results cover all compact surfaces genus at least 2

2008
Gideon Schechtman

We show that for each positive integer k there is a k × k matrix B with ±1 entries such that letting K1 be the symmetric convex hull of the rows of B and K2 the symmetric convex hull of √ k times the canonical unit vector basis of Rk (= √ kBk 1 ), then K1∩K2 lies between two universal multiples of the Euclidean unit ball, Bk 2 . Moreover, the probability that a random ±1 matrix satisfies the ab...

2006
Peter D. Drummond

By using a complex eld with a symmetric combination of electric and magnetic elds, a rstorder covariant Lagrangian for Maxwell's equations is obtained, similar to the Lagrangian for the Dirac equation. This leads to a dual-symmetric quantum electrodynamic theory with an in nite set of local conservation laws. The dual symmetry is shown to correspond to a helical phase, conjugate to the conserve...

2008
ANTUN MILAS

To every k-dimensional modular invariant vector space we associate a modular form on SL(2,Z) of weight 2k. We explore number theoretic properties of this form and found a sufficient condition for its vanishing which yields modular identities (e.g., Ramanujan-Watson’s modular identities). Furthermore, we focus on a family of modular invariant spaces coming from suitable two-dimensional spaces vi...

Journal: :Journal of Differential Geometry 1991

Journal: :Journal of the Korean Mathematical Society 2003

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