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We prove that the polynomial form of the scattering equations is a Macaulay H-basis. We demonstrate that this H-basis facilitates integrand reduction and global residue computations in a way very similar to using a Gr\"obner basis, but…

High Energy Physics - Theory · Physics 2016-08-10 Jorrit Bosma , Mads Sogaard , Yang Zhang

We prove that 2-Local Hamiltonian (2-LH) with Low Complexity problem is QCMA-complete by combining the results from the QMA-completeness[4] of 2-LH and QCMA-completeness of 3-LH with Low Complexity[6]. The idea is straightforward. It has…

Computational Complexity · Computer Science 2019-09-10 Ying-hao Chen

In three dimensions, the construction of bi-Hamiltonian structure can be reduced to the solutions of a Riccati equation with the arclength coordinate of a Frenet-Serret frame being the independent variable. Explicit integration of conserved…

Dynamical Systems · Mathematics 2010-03-02 H. Gumral

We propose one possible generalization of the KP hierarchy, which possesses multi bi--hamiltonian structures, and can be viewed as several KP hierarchies coupled together.

High Energy Physics - Theory · Physics 2015-06-26 C. S. Xiong

The duality is a fundamental property of the finite multiple harmonic sums (MHS). In this paper, we prove a duality result for certain generalizations of MHS which appear naturally as the differences of MHS. We also prove a formula for the…

Number Theory · Mathematics 2009-05-12 Gaku Kawashima

In this paper, we present two new generalizations of the Euler-Mascheroni constant arising from the Dirichlet series associated to the hyperharmonic numbers. We also give some inequalities related to upper and lower estimates, and…

Number Theory · Mathematics 2021-09-06 Mümün Can , Ayhan Dil , Levent Kargın , Mehmet Cenkci , Mutlu Güloğlu

We consider different generalizations of the Euler formula and discuss the properties of the associated trigonometric functions. The problem is analyzed from different points of view and it is shown that it can be formulated in a natural…

Classical Analysis and ODEs · Mathematics 2011-03-15 D. Babusci , G. Dattoli , E. Di Palma , E. Sabia

We derive a separability criterion for bipartite quantum systems which generalizes the already known criteria. It is based on observables having generic commutation relations. We then discuss in detail the relation among these criteria.

Quantum Physics · Physics 2009-11-07 Vittorio Giovannetti , Stefano Mancini , David Vitali , Paolo Tombesi

We introduce the notions of generalised (bi-)Hamiltonian structures which generalise naturally the (bi-)Hamiltonian structures of evolutionary partial differential equations. In the hydrodynamic case, these structures are characterised in…

Mathematical Physics · Physics 2026-04-20 Paolo Lorenzoni , Zhe Wang

In this paper we use the power of the outer exponential $\Lambda^B$ of a bivector $B$ to see the so-called invariant decomposition from a different perspective. This is deeply connected with the eigenvalues for the adjoint action of $B$, a…

Mathematical Physics · Physics 2025-10-16 David Eelbode , Martin Roelfs , Steven De Keninck

Soliton equations in 2+1 and their 1+1 = 2+0 reductions are considered.

solv-int · Physics 2007-05-23 N. K. Bliev , G. N. Nugmanova , R. N. Syzdykova , R. Myrzakulov

In the present paper, we provide a detailed derivation of the stochastic Hamilton-Jacobi-Bellman equation

Optimization and Control · Mathematics 2023-12-11 Vasil Yordanov

We investigate bicomplex Hamiltonian systems in the framework of an analogous version of the Schrodinger equation. Since in such a setting three different types of conjugates of bicomplex numbers appear, each is found to define in a natural…

Mathematical Physics · Physics 2015-11-23 Bijan Bagchi , Abhijit Banerjee

The interest in the Camassa-Holm equation inspired the search for various generalizations of this equation with interesting properties and applications. In this letter we deal with such a two-component integrable system of coupled…

Exactly Solvable and Integrable Systems · Physics 2009-07-14 Adrian Constantin , Rossen I. Ivanov

We give explicit evaluations of the linear and non-linear Euler sums of hyperharmonic numbers $h_{n}^{\left( r\right) }$ with reciprocal binomial coefficients. These evaluations enable us to extend closed form formula of Euler sums of…

Number Theory · Mathematics 2021-03-23 Levent Kargın , Mümün Can , Ayhan Dil , Mehmet Cenkci

Generalized trigonometric functions and generalized hyperbolic functions can be converted to each other by the duality formulas previously discovered by the authors. In this paper, we apply the duality formulas to prove dual pairs of…

Classical Analysis and ODEs · Mathematics 2023-01-06 Hiroki Miyakawa , Shingo Takeuchi

Higher flows of the Heisenberg ferromagnet equation and the Wadati-Konno-Ichikawa equation are generalized into multi-component systems on the basis of the Lax formulation. It is shown that there is a correspondence between the…

solv-int · Physics 2007-05-23 Takayuki Tsuchida , Miki Wadati

We generalize the Benney lattice and show that the new system of equations can be reduced to a generalized Chaplygin gas as well as the heavenly equation. We construct two infinite sets of conserved charges and show that one of the sets can…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 A. Constandache , Ashok Das , Ziemowit Popowicz

In this paper, we provide the geometric formulation to the two-component Camassa-Holm equation (2-mCHE). We also study the relation between the 2-mCHE and the M-CV equation. We have shown that these equations arise from the invariant space…

Exactly Solvable and Integrable Systems · Physics 2019-08-06 Bayan Kutum , Gulgassyl Nugmanova , Tolkynay Myrzakul , Kuralay Yesmakhanova , Ratbay Myrzakulov

We establish several bifurcation results for the singular Lane-Emden-Fowler equation.

Analysis of PDEs · Mathematics 2007-05-23 Marius Ghergu , Vicentiu Radulescu
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