A Original research papers
A.1 Papers in impacted international research journals

A.1.1 V. Janis and M. Ringel, Magnetic properties of metallic impurities with strongly correlated electrons, Acta Phys. Polon. A115 (2009) 30-36.
A.1.2 V. Janis, A. Klíc and M. Ringel, Replica-symmetry breaking: discrete and continuous schemes in the Sherrington-Kirkpatrick model, J. Phys. A: Math. Theor. 41 324004 (2008) 1 - 14.
A.1.3 V. Janis, _Free-energy functional for the Sherrington-Kirkpatrick model: The Parisi formula completed, Phys. Rev. B77,104417 (2008) 1 - 5.
A.1.4 V. Janis and P. Augustinský, Kondo behavior in the asymmetric Anderson model: Analytic approach, Phys. Rev. B77, 085106 (2008) 1-11.
A.1.5 V. Janis and P. Augustinský, Analytic impurity solver with Kondo strong-coupling asymptotics, Phys. Rev. B75, 165108 (2007) 1-7.
A.1.6 V. Janis, Green functions in the renormalized many-body perturbation theory for correlated and disordered electrons, Condensed Matter Physics 9 (2006) 499-518.
A.1.7 V. Janis, Incompleteness of the Thouless, Anderson, and Palmer mean-field description of the spin-glass phase, Phys. Rev. B74, 054207 (2006) 1-12.
A.1.8 V. Janis and A. Klíc, Hierarchical solutions of the Sherrington-Kirkpatrick model: Exact asymptotic behavior near the critical point, Phys. Rev. B74, 054410 (2006) 1-9.
A.1.9 V. Janis and L. Zdeborová, Thermodynamic origin of order parameters in mean-field models of spin glasses, Phys. Stat. Sol. 243 (2006) 716-31.
A.1.10 V. Janis and J. Kolorenc, Mean-field theories for disordered electrons: Diffusion pole and Anderson localization, Phys. Rev. B71, 245106 (2005) 1 - 11.
A.1.11 V. Janis and L. Zdeborová, Replica trick with real replicas: A way to build in thermodynamic homogeneity, Prog. Theor. Phys. Suppl. 157 (2005) 99 - 102.
A.1.12 V. Janis, Stability of solutions of the Sherrington-Kirkpatrick model with respect to uniform scalings of extensive variables, Phys. Rev. B71, 214403 (2005) 1 - 9.
A.1.13 V. Janis and J. Kolorenc, Mean-field theory of Anderson localization: Asymptotic solution in high spatial dimensions, Phys. Rev. B71, 033103 (2005) 1-4.
A.1.14 V. Drchal, V. Janis, J. Kudrnovský, V. S. Oudovenko, X. Dai, K. Haule, and G. Kotliar, Dynamical correlations in multiorbital Hubbard models: Fluctuation-exchange approximations, J. Phys.: Condens. Matter 17 (2005) 61-74.
A.1.15 A. B. Shick, V. Janis, and P. Oppeneer, Effect of Coulomb correlations in the electronic structure of PuCoGa, _Phys. Rev. Lett. 94, 016401 (2005) 1-4.
A.1.16 V. Janis and J. Kolorenc, Causality versus Ward identity in disordered electron systems, Mod. Phys. Lett. B18 (2004) 1051 -8.
A.1.17 V. Janis and J. Kolorenc, Conservation laws in disordered electron systems: Thermodynamic limit and configurational averaging, Phys. stat. sol. (b) 241 (2004) 2032-42.
A.1.18 A. B. Shick, V. Janis, V. Drchal, and W. E. Pickett, Spin and orbital magnetic state of UGe under pressure, Phys. Rev. B70, 134506 (2004) 1-6.
A.1.19 V. Janis, J. Kolorenc, and V. Spicka, Density and current response functions in strongly correlated electron systems: diffusion, electrical conductivity and Einstein relation, Eur. Phys. J. B35 (2003) 77-91.
A.1.20 V. Janis, Two-paritcle renormalizations in many-fermion perturbation theory: the importance of the Ward identity, _J. Phys. Condens. Matter 15 (2003) L311-7.
A.1.21 V. Janis, Electron-hole resonant states in the Hubbard model, _Physica B312-313 (2002) 522-24.
A.1.22 V. Drchal, V. Janis, and J. Kudrnovský, Multiband Hubbrad Hamiltonians with exchange: Single-channel approximations, Physica B312-313 (2002) 519-21.
A.1.23 V. Janis, Phase transitions with nonstandard critical behavior, Acta Physica Polonica 32 (2001) 3357-65.
A.1.24 V. Janis, Parquet approach to nonlocal vertex functions and electrical conductivity of disordered electrons, _Phys. Rev. B64 115115 (2001) 1-16.
A.1.25 V. Janis and D. Vollhardt, Conductivity of disordered electrons: mean-field approximation containing vertex corrections, Phys. Rev. B63 125112 (2001) 1-7.
A.1.26 V. Janis, G. Czycholl, Fluctuation-driven insulator-to-metal transition in an external magnetic field, _Phys. Rev. B61 (2000) 9875-8.
A.1.27 V. Drchal, V. Janis, and J. Kudrnovský, Dynamical electron correlations in weakly interacting systems: TB-LMTO approach to metals and random alloys, _Phys. Rev. B60 (1999) 15664-73.
A.1.28 V. Janis, Stability of self-consistent solutions for the Hubbard model at intermediate and strong coupling, Phys. Rev. B60 (1999) 11345-60.
A.1.29 V. Janis, Asymptotic limit of high spatial dimensions and thermodynamic consistence of mean-field theories, _Phys. Rev. Lett. 83 (1999) 2781-4.
A.1.30 V. Janis, Correlated electrons in an external magnetic field, Physica B259-61 (1999) 751-2.
A.1.31 V. Janis, Hubbard model at intermediate coupling: Renormalization of interaction strength, _J. Phys: Condens. Matter 10 (1998) 2 915-32.
A.1.32 V. Janis, Wiener-Hopf method applied to the x-ray edge problem, Int. J. Mod. Phys. B11 (1997) 3 433-53.
A.1.33 V. Janis, The failure of Fermi-liquid theory at strong coupling, _J. Phys. C: Condensed Matter 8 (1996) L173-8.
A.1.34 V. Janis, X-ray edge singularity: Fredholm versus Wiener-Hopf method, Physica B223-224 (1996) 616-618.
A.1.35 V. Janis and J. Schlipf, Linked-cluster expansion around mean-field theories of interacting electrons, _Phys. Rev. B52 (1995) 17 119-34.
A.1.36 M. Ulmke, V. Janis, and D. Vollhardt, Anderson-Hubbard model in , _Phys. Rev. B51 (1995) 10 411-26.
A.1.37 V. Janis, Theory of soft x-ray spectra: Nonequilibrium dynamics of many electrons, Acta Physica Slovaca 44 (1994) 391-402.
A.1.38 P. G. J. van Dongen and V. Janis, Mott transition near the ferromagnetic state, _Phys. Rev. Lett. 72 (1994) 3 258-61, Phys. Rev. Lett. 73 (1994) 912.
A.1.39 V. Janis, M. Ulmke, and D. Vollhardt, Metal-insulator transitions in the disordered Hubbard model, Physica B194-196 (1994) 1 069-70.
A.1.40 V. Janis and D. Vollhardt, Analytically tractable mean-field theory for interacting electrons at strong coupling, Physica B194-196 (1994) 489-90.
A.1.41 V. Janis, Green’s function of the core electrons in a lattice model for x-ray spectra: Breakdown of perturbation theory in the long-time limit, Phys. Rev. B49 (1994) 1612-26.
A.1.42 V. Janis, M. Ulmke and D. Vollhardt, Disorder vs. interaction in the Hubbard model: Phase diagram in infinite dimensions, Europhysics Letters 24 (1993) 287-92.
A.1.43 V. Janis, A lattice model for x-ray emission and absorption of metals: the edge singularity, J. Phys.: Condens. Matter 5 (1993) L425-32.
A.1.44 V. Janis, J. Masek and D. Vollhardt, Construction of analytically tractable mean-field theories for quantum models. II Susceptibilities and energy bounds on the Hubbard model, Z. Physik B91 (1993) 325-36.
A.1.45 V. Janis and D. Vollhardt, Construction of analytically tractable mean-field theories for quantum models. I General formalism with application to the Hubbard model at strong coupling, Z. Physik B91 (1993) 317-23.
A.1.46 V. Janis and D. Vollhardt, Coupling of quantum degrees of freedom in strongly interacting, disordered electron systems, Phys. Rev. B46 (1992) 15 712-15.
A.1.47 V. Janis, F. Gebhard, R. Strack, and D. Vollhardt, Comment on "Interacting-electron model exactly solvable in any dimension", Phys. Rev. Lett. 69 (1992) 2 443.
A.1.48 V. Janis and D. Vollhardt, Comprehensive mean-field theory for the Hubbard model, Int. J. Mod. Phys. B6 (1992) 731-747.
A.1.49 V. Janis, A new construction of thermodynamic mean-field theories of itinerant fermions: Application to the Falicov-Kimball model, Z. Physik B83 (1991) 227-35.
A.1.50 V. Janis, Mean-field theory for spin glasses with many macroscopic states, Phys. Status Solidi (b)157 (1990) 425-30.
A.1.51 V. Janis, Free-energy functional in the generalized coherent-potential approximation, Phys. Rev. B40 (1989) 11 331-4.
A.1.52 V. Janis, Hubbard model: Towards the exact solution in , Int. J. Mod. Phys. B3 (1989) 2 149-57.
A.1.53 V. Janis, On the mean-field spin-glass instability at finite fields, _J. Phys. A: Math. Gen. 20 (1987) L1017-22.
A.1.54 J. Masek, B. Velický and V. Janis, A tight-binding study of MnTe, J. Phys. C: Solid State 20 (1987) 59-68.
A.1.55 V. Janis, Diagrammatic expansion and metastability in the random-field Ising model, J. Stat. Phys. 47 (1987) 931-8.
A.1.56 J. Masek, B. Velický and V. Janis, Electronic structure of the paramagnetic MnTe, Acta Phys. Polonica A69 (1986) 1 107-10.
A.1.57 V. Janis, The effect of higher-order cumulants in the random-field Ising model, Phys. Status Solidi (b)138 (1986) 539-46.
A.1.58 V. Janis, A self-consistent approximation for the random-field Ising model: Phase diagram in d3, Phys. Status Solidi (b)134 (1986) 141-6.
A.1.59 J. Bicák and V. Janis, Magnetic fluxes across black holes, Month. Not. Roy. Astr. Soc. 212 (1985) 899-915.
A.1.60 V. Janis, J. Soucek and V. Soucek, Operator formalism equivalent to the Feynman quantization technique, J. Math. Phys. 24 (1983) 834-8.