activity
19922023
most citedMulti-loop Feynman integrals and conformal quantum mechanics

79 citations · 807 across the 61 of their papers we have counts for

collaborators

61 papers

hep-th2023

Lagrangian formulation for free infinite spin field

I. L. Buchbinder, S. A. Fedoruk, A. P. Isaev +1

We construct a Lagrangian that describes the dynamics of a six-dimensional free infinite (continuous) spin field in Minkowski space. The Lagrangian is formulated in the framew…

hep-th2023

Generalized Wigner operators and relativistic gauge fields

I. L. Buchbinder, A. P. Isaev, M. A. Podoinitsyn +1

We introduce and study the generalized Wigner operator. By definition, such an operator transforms the Wigner wave function into a local relativistic field corresponding to an irre…

hep-th2023★ 2 cited

Generalization of the Bargmann-Wigner construction for infinite spin fields

I. L. Buchbinder, A. P. Isaev, M. A. Podoinitsyn +1

We develop a generalization of the Wigner scheme for constructing the relativistic fields corresponding to irreducible representations of the four-dimensional Poincaré group with i…

hep-th2023★ 12 cited

Ladder and zig-zag Feynman diagrams, operator formalism and conformal triangles

S. E. Derkachov, A. P. Isaev, L. A. Shumilov

We develop an operator approach to the evaluation of multiple integrals for multiloop Feynman massless diagrams. A commutative family of graph building operators for ladder d…

math-ph2023★ 19 cited

Split Casimir operator for simple Lie algebras in the cube of -representation and Vogel parameters

A. P. Isaev, S. O. Krivonos, A. A. Provorov

We constructed characteristic identities for the 3-split (polarized) Casimir operators of simple Lie algebras in the adjoint representations and deduced a certain cla…

math-ph2022

Flat connection on four-dimensional lattice, related matrix difference equations and their solutions

H. Boos, A. P. Isaev

In the paper [H.Boos, A.Hutsalyuk and Kh.Nirov, J.Phys.A:Math.Theor. 51 (2018) 445202] the reduced density matrix of the sl(3)-invariant fundamental exchange model was calculated f…