Convolution type functional equations on topological abelian groups L Székelyhidi World Scientific, 1991 | 229 | 1991 |

On a theorem of Baker, Lawrence and Zorzitto L Székelyhidi Proceedings of the American Mathematical Society 84 (1), 95-96, 1982 | 86 | 1982 |

Discrete spectral synthesis and its applications L Székelyhidi Springer Science & Business Media, 2007 | 69 | 2007 |

On a class of linear functional equations L Székelyhidi Publ. Math. Debrecen 29 (1-2), 19-28, 1982 | 52 | 1982 |

Functional equations on hypergroups L Székelyhidi Functional equations, inequalities and applications, 167-181, 2003 | 49 | 2003 |

The stability of the sine and cosine functional equations L Székelyhidi Proceedings of the American Mathematical Society, 109-115, 1990 | 49 | 1990 |

Spectral synthesis on discrete Abelian groups M Laczkovich, L Székelyhidi Mathematical Proceedings of the Cambridge Philosophical Society 143 (1), 103-120, 2007 | 48 | 2007 |

Note on a stability theorem L Székelyhidi Canadian Mathematical Bulletin 25 (4), 500-501, 1982 | 47 | 1982 |

The stability of d’Alembert-type functional equations L Székelyhidi Acta Sci. Math.(Szeged) 44, 313-320, 1982 | 39 | 1982 |

Ulam’s problem, Hyers’s solution—and to where they led L Székelyhidi Functional Equations and Inequalities, 259-285, 2000 | 35 | 2000 |

Note on Hyers’s theorem L Székelyhidi CR Math. Rep. Acad. Sci. Canada 8, 127-129, 1986 | 34 | 1986 |

On a stability theorem L Székelyhidi C. R. Math. Rep. Acad. Sci. Canada 3 (5), 253-255, 1981 | 33 | 1981 |

Functional equations on abelian groups L Székelyhidi Acta Mathematlca Academiae Sclentiarum Hungarlcae 37, 19S1, 1981 | 32 | 1981 |

Stability of ternary homomorphisms via generalized Jensen equation MS Moslehian, L Székelyhidi Results in Mathematics 49 (3), 289-300, 2006 | 30 | 2006 |

Harmonic and spectral analysis L Székelyhidi World Scientific, 2014 | 29 | 2014 |

Remark 17 L Székelyhidi Aequationes Math 29, 95-96, 1985 | 29 | 1985 |

Note on exponential polynomials L Székelyhidi Pacific Journal of Mathematics 103 (2), 583-587, 1982 | 28 | 1982 |

Spectral synthesis problems on locally compact groups L Székelyhidi Monatsh. Math 161 (2), 223-232, 2010 | 26 | 2010 |

The failure of spectral synthesis on some types of discrete Abelian groups L Székelyhidi Journal of mathematical analysis and applications 291 (2), 757-763, 2004 | 25 | 2004 |

Spectral synthesis on torsion groups Á Bereczky, L Székelyhidi Journal of mathematical analysis and applications 304 (2), 607-613, 2005 | 24 | 2005 |