Results 51 to 60 of about 31,076 (193)

Monoids of ND-Full Hypersubstitutions

Discussiones Mathematicae - General Algebra and Applications, 2019
An nd-full hypersubstitution maps any operation symbols to the set of full terms of type τn. Nd-full hypersubstitutions can be extended to mappings which map sets of full terms to sets of full terms.
Lekkoksung Somsak
doaj   +1 more source

Functional determinants for general self-adjoint extensions of Laplace-type operators resulting from the generalized cone

, 2007
In this article we consider the zeta regularized determinant of Laplace-type operators on the generalized cone. For {\it arbitrary} self-adjoint extensions of a matrix of singular ordinary differential operators modelled on the generalized cone, a closed
A.A. Bytsenko, A.N. Kochubeĭ, B. Basu-Mallick, B. Basu-Mallick, B.S. Pavlov, C. Callias, C. Callias, C. Callias, C. Radin, D. Birmingham, D. Burghelea, D. Burghelea, D.B. Ray, D.B. Ray, D.V. Fursaev, E. Mooers, F. Calogero, F. Calogero, F. Calogero, G. Cognola, G. Cognola, G. t’Hooft, G. ’t Hooft, G.V. Dunne, G.W. Gibbons, H. Falomir, H. Falomir, H. Falomir, H. Weyl, H. Weyl, H.E. Camblong, H.E. Camblong, I.L. Buchbinder, J. Brüning, J. Brüning, J. Cheeger, J. Cheeger, J. Cheeger, J. Cheeger, J. Conway, J. Müller, J. Weidmann, J.-M. Bismut, J.-M. Bismut, J.-M. Bismut, J.B. Gil, J.B. Gil, J.B. Gil, J.S. Dowker, J.S. Dowker, J.S. Dowker, J.S. Dowker, J.S. Dowker, J.S. Dowker, J.S. Dowker, J.S. Dowker, J.S. Dowker, Jinsung Park, K. Kirsten, K. Kirsten, K. Kirsten, Klaus Kirsten, L.S. Schulman, M. Bordag, M. Bordag, M. Bordag, M. Harmer, M. Harmer, M. Lesch, M. Lesch, M. Spreafico, M.A. Olshanetsky, N. Birrell, P. Claus, P. Loya, P. Ramond, Paul Loya, R. Forman, R. Forman, R. Rajaraman, R. Seeley, R.P. Feynman, S. Levit, S.A. Coon, S.K. Blau, S.K. Blau, S.W. Hawking, T. Dreyfuss, T.P. Branson, T.R. Govindarajan, V. De Alfaro, V. Kostrykin, V. Moretti, W. Bulla, W. Müller, W. Pauli, W.M. Frank   +96 more
core   +2 more sources

Enumerating Problems Concerning Endomorphisms of Double Vertex Wheel Graphs

Journal of Mathematics
We can define six classes of endomorphisms on a graph, and they always form a chain based on set inclusion. The concepts of endomorphism type and endomorphism spectrum were introduced by Böttcher and Knauer in 1992.
Yu Li, Hailong Hou, Kaidi Xu
doaj   +1 more source

Hilbert spaces built on a similarity and on dynamical renormalization

, 2005
We develop a Hilbert space framework for a number of general multi-scale problems from dynamics. The aim is to identify a spectral theory for a class of systems based on iterations of a non-invertible endomorphism. We are motivated by the more familiar
Dutkay, Dorin Ervin, Jorgensen, Palle E. T.   +1 more
core   +5 more sources

Traces of Hecke operators on Drinfeld modular forms for GL2(Fq[T])$\operatorname{GL}_2(\mathbb {F}_q[T])$

Mathematika, Volume 72, Issue 2, April 2026.
Abstract In this paper, we study traces of Hecke operators on Drinfeld modular forms of level 1 in the case A=Fq[T]$A = \mathbb {F}_q[T]$. We deduce closed‐form expressions for traces of Hecke operators corresponding to primes of degree at most 2 and provide algorithms for primes of higher degree.
Sjoerd de Vries
wiley   +1 more source

Examples of Lie and Balinsky-Novikov algebras related to Hamiltonian operators

Topological Algebra and its Applications, 2018
We study algebraic properties of Poisson brackets on non-associative non-commutative algebras, compatible with their multiplicative structure. Special attention is paid to the Poisson brackets of the Lie-Poisson type, related with the special Lie ...
Artemovych Orest D., Prykarpatski Anatolij K., Blackmore Denis L.   +2 more
doaj   +1 more source

Ordinary primes for GL2$\operatorname{GL}_2$‐type abelian varieties and weight 2 modular forms

Mathematika, Volume 72, Issue 2, April 2026.
Abstract Let A$A$ be a g$g$‐dimensional abelian variety defined over a number field F$F$. It is conjectured that the set of ordinary primes of A$A$ over F$F$ has positive density, and this is known to be true when g=1,2$g=1, 2$, or for certain abelian varieties with extra endomorphisms.
Tian Wang, Pengcheng Zhang
wiley   +1 more source

A Re‐Examination of Foundational Elements of Cosmology

Fortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT This paper undertakes a conceptual re‐examination of several foundational elements of cosmology through the lens of spacetime symmetries. A new derivation of the Friedmann–Lemaître–Robertson–Walker metric is obtained by a careful conceptual examination of rotations and translations on generic manifolds, followed by solving the rotational and ...
Lavinia Heisenberg
wiley   +1 more source

Mating parabolic rational maps with Hecke groups

Proceedings of the London Mathematical Society, Volume 132, Issue 3, March 2026.
Abstract We prove that any degree d$d$ rational map having a parabolic fixed point of multiplier 1 with a fully invariant and simply connected immediate basin of attraction is mateable with the Hecke group Hd+1$\mathcal {H}_{d+1}$, with the mating realised by an algebraic correspondence.
Shaun Bullett, Luna Lomonaco, Mikhail Lyubich, Sabyasachi Mukherjee   +3 more
wiley   +1 more source

Solvability of invariant systems of differential equations on H2$\mathbb {H}^2$ and beyond

Mathematische Nachrichten, Volume 299, Issue 2, Page 456-479, February 2026.
Abstract We show how the Fourier transform for distributional sections of vector bundles over symmetric spaces of non‐compact type G/K$G/K$ can be used for questions of solvability of systems of invariant differential equations in analogy to Hörmander's proof of the Ehrenpreis–Malgrange theorem.
Martin Olbrich, Guendalina Palmirotta
wiley   +1 more source