activity
19932021
most citedOn Calculation of $2+\veps$ RG Functions in the Gross Neveu Model from Large Expansions of Critical Exponents

43 citations · 76 across the 8 of their papers we have counts for

collaborators

8 papers

math.SP2021

Lieb-Thirring and Jensen sums for non-self-adjoint Schrödinger operators on the half-line

Leonid Golinskii, Alexei Stepanenko

We prove upper and lower bounds for sums of eigenvalues of Lieb-Thirring type for non-self-adjoint Schrödinger operators on the half-line. The upper bounds are established for gene…

math.AP2021★ 1 cited

Computing eigenvalues of the Laplacian on rough domains

Frank Rösler, Alexei Stepanenko

We prove a general Mosco convergence theorem for bounded Euclidean domains satisfying a set of mild geometric hypotheses. For bounded domains, this notion implies norm-resolvent co…

math.SP2020

Bounds for Schrödinger operators on the half-line perturbed by dissipative barriers

Alexei Stepanenko

We consider Schrödinger operators of the form for large , where and . Bounds for the maximum magnitude of a…

math.SP2020★ 3 cited

Spectral Inclusion and Pollution for a Class of Dissipative Perturbations

Alexei Stepanenko

Spectral inclusion and spectral pollution results are proved for sequences of linear operators of the form on a Hilbert space, where is strongly convergent to…

cond-mat.stat-mech1999

Field-theoretic methods for systems of particles with exotic exclusion statistics

A. S. Stepanenko, J. M. F. Gunn

We calculate the partition function of a gas of particles obeying Haldane exclusion statistics, using a definition of a Hilbert space having a `fractional dimension' and constructi…

cond-mat1999★ 1 cited

`Baryonic' bound-state instability in trapped fermionic atoms

A. S. Stepanenko, J. M. F. Gunn

We consider a homogeneous gas of spin-S fermionic atoms, as might occur near the center of an optical trap. In the case where all scattering lengths are negative and of the same ma…