Results 71 to 80 of about 1,077,663 (191)

14. Discogenic Low Back Pain

open access: yesPain Practice, Volume 25, Issue 7, September 2025.
ABSTRACT Introduction Discogenic low back pain can be severely disabling, clinically challenging to diagnose, and expensive to treat. Disc degeneration is characterized by disc dehydration, which diminishes the ability of the disc to distribute pressure, making it more susceptible to damage, and leading to annular tears, fissures, and a higher ...
Wouter K. M. van Os   +6 more
wiley   +1 more source

Hecke operators on rational functions

open access: yes, 2003
We define Hecke operators U_m that sift out every m-th Taylor series coefficient of a rational function in one variable, defined over the reals. We prove several structure theorems concerning the eigenfunctions of these Hecke operators, including the ...
Gil, Juan B., Robins, Sinai
core   +1 more source

Index of Hecke operators

open access: yesIllinois Journal of Mathematics, 1985
Let M be a complete Riemannian manifold. Suppose the discrete group \(\Gamma\) acts isometrically and properly discontinuously on M with compact quotient \(\bar M=\Gamma \setminus M\). Assume that S is a set of isometries of M satisfying (i) \(S=\Gamma S=S\Gamma\) and (ii) \(\Gamma\) \(\setminus S\) is a finite set. The associated Hecke operator \(T_ S\
openaire   +3 more sources

On graphs of Hecke operators [PDF]

open access: yesJournal of Number Theory, 2019
31 ...
openaire   +3 more sources

Hecke operators on de Rham cohomology.

open access: yesRevista Matemática Complutense, 2004
The author introduces the notion of Hecke operators on de Rham cohomology of a compact oriented manifolds. Such an operator is determined by a pair of covering maps of the given manifold. When the manifolds are regarded as quotients of their universal covering space by discrete subgroup of its group of diffeomorphisms, the properties of these operators
openaire   +3 more sources

Ramanujan graphs and Hecke operators [PDF]

open access: yesBulletin of the American Mathematical Society, 1990
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On the Spectrum of Hecke Type Operators related to some Fractal Groups

open access: yes, 1999
We give the first example of a connected 4-regular graph whose Laplace operator's spectrum is a Cantor set, as well as several other computations of spectra following a common ``finite approximation'' method.
Bartholdi, Laurent   +1 more
core   +1 more source

A table of Hecke operators, II

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1973
reducible factors) for (1 ...
openaire   +2 more sources

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