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We prove interior gradient estimate and second order estimate for the $Q_k$-flow and $Q_k$-translators in $\mathbb{R}^{n+1}$. In addition, we show that $Q_k$-translator which are asymptotic to $o(|x|)$ cannot exist.

Differential Geometry · Mathematics 2021-07-27 Jose Torres Santaella

In this paper we obtain several properties of translating solitons for a general class of extrinsic geometric curvature flows given by a homogeneous, symmetric, smooth non-negative function $\gamma$ defined in an open cone…

Differential Geometry · Mathematics 2024-03-06 José Torres Santaella

We consider the bosonic Fock space over the Hilbert space of transversal vector fields in three dimensions. This space carries a canonical representation of the group of rotations. For a certain class of operators in Fock space we show that…

Mathematical Physics · Physics 2015-05-28 David Hasler , Ira Herbst

This paper deals with the class of Q-tensors, that is, a Q-tensor is a real tensor $\mathcal{A}$ such that the tensor complementarity problem $(\q, \mathcal{A})$: $$\mbox{ finding } \x \in \mathbb{R}^n\mbox{ such that }\x \geq \0, \q +…

Optimization and Control · Mathematics 2017-01-18 Yisheng Song , Liqun Qi

Generalized virial theorem for quantum mechanical nonrelativistic and relativistic systems with translational and rotational symmetry is derived in the form of the commutator between the generator of dilations G and the Hamiltonian H. If…

Quantum Physics · Physics 2013-02-27 Domagoj Kuic

Assuming that there exist operators which form an irreducible representation of the q-superoscillator algebra, it is proved that any two such representations are equivalent, related by a uniquely determined superunitary transformation. This…

funct-an · Mathematics 2009-10-22 M. Chaichian , R. Gonzalez Felipe , P. Presnajder

This paper establishes geometric obstructions to the existence of complete, properly embedded, mean curvature flow self-translating solitons $\Sigma^n\subseteq \mathbb{R}^{n+1}$, generalizing previously known non-existence conditions such…

Differential Geometry · Mathematics 2014-11-11 Niels Martin Møller

We consider a class of translation invariant models of non-relativistic QED with net charge. Under certain natural assumptions we prove that ground states do not exist in the Fock space.

Mathematical Physics · Physics 2008-11-26 David Hasler , Ira Herbst

This paper focuses on the translating solitons of fully nonlinear extrinsic curvature geometric flows in $\mathbb{R}^{n+1}$. We present a generalization of the Spruck-Xiao's and Spruck-Sun's convexity results for $1$-homogeneous…

Differential Geometry · Mathematics 2024-11-27 José Torres Santaella

A resonance theorem providing existence of functions that are counterexamples for all members of a given family of translation invariant differentiation bases is proved. Applications of the theorem to Zygmund problem on a choice of…

Analysis of PDEs · Mathematics 2015-01-07 Giorgi G. Oniani

A method is presented for achieving entanglement-free teleportation of a quantum state subject to any quantum noise. We apply this as a light-speed noise-resistant communicator, but also treat the possibility of a quantum ansible, a device…

General Physics · Physics 2016-05-31 Samuel R. Hedemann

Fix a positive integer $N$ and a real number $0< \beta < 1/(N+1)$. Let $\Gamma$ be the homogeneous symmetric Cantor set generated by the IFS $$ \Big\{ \phi_i(x)=\beta x + i \frac{1-\beta}{N}: i=0,1,\cdots, N \Big\}. $$ For…

Dynamical Systems · Mathematics 2023-05-05 Derong Kong , Wenxia Li , Zhiqiang Wang , Yuanyuan Yao , Yunxiu Zhang

We show that families of translation operators, where the translates grow exponentially fast, do not admit common hypercyclic functions. The result is close to be optimal.

Functional Analysis · Mathematics 2014-12-04 George Costakis , Nikos Tsirivas , Vagia Vlachou

We compute the algebraic K-theory of the non-commutative ring k<x_1,...,x_n>/(m^a) when k is a perfect field of positive characteristic and m=(x_1,...,x_n). We express the answer in terms of the truncation poset Witt vectors developed in…

K-Theory and Homology · Mathematics 2017-05-17 Vigleik Angeltveit

The aim of this paper is to give a complete classification of irreducible finite dimensional representations of the nonstandard q-deformation U'_q(so(n)) (which does not coincide with the Drinfeld-Jimbo quantum algebra U_q(so(n)) of the…

Quantum Algebra · Mathematics 2007-05-23 N. Z. Iorgov , A. U. Klimyk

The purpose of this paper is to clarify the relationship between various conditions implying essential undecidability: our main result is that there exists a theory $T$ in which all partially recursive functions are representable, yet $T$…

Logic · Mathematics 2020-05-13 Emil Jeřábek

We consider the $2+1$ Toda system \[ \frac{1}{4}\Delta q_{n}=e^{q_{n-1}-q_{n}}-e^{q_{n}-q_{n+1}}\text{ in }\mathbb{R}^{2},\ n\in\mathbb{Z}. \] It has a traveling wave type solution $\left\{ Q_{n}\right\} $ satisfying…

Analysis of PDEs · Mathematics 2018-10-17 Yong Liu , Juncheng Wei

We present numerical evidence for the existence of spinning generalizations for non-topological Q-ball solitons in the theory of a complex scalar field with a non-renormalizable self-interaction. To the best of our knowledge, this provides…

High Energy Physics - Theory · Physics 2009-11-07 Mikhail S. Volkov , Erik Woehnert

The first and second representation theorems for sign-indefinite, not necessarily semi-bounded quadratic forms are revisited. New straightforward proofs of these theorems are given. A number of necessary and sufficient conditions ensuring…

Functional Analysis · Mathematics 2012-06-15 Luka Grubisic , Vadim Kostrykin , Konstantin A. Makarov , Kresimir Veselic

In the present paper we prove Liouville-type theorems: non-existence theorems for conformal mappings of complete Riemannian manifolds. In addition, we give an application of these results to the theory of conharmonic transformations. A part…

Differential Geometry · Mathematics 2016-08-24 Sergey E. Stepanov , Irina I. Tsyganok
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