Papers:

1. Simplicial complex entropy for time series analysis, L Guzmán-Vargas, A Zabaleta-Ortega, A Guzmán-Sáenz. Scientific Reports 13 (1), 22696, 2023. A script for calculating the Simplicial Complex Approximate Entropy ( SCAE_1) is described in this Github repository.  

2. Topological data analysis of the synchronization of a network of Rössler chaotic electronic oscillators.  A Zabaleta-Ortega, C Masoller, L Guzmán-Vargas, Chaos: An Interdisciplinary Journal of Nonlinear Science 33 (11), 2023

3. A multiplex analysis of phonological and orthographic networks Pablo Lara-Martínez, Bibiana Obregón-Quintana, CF Reyes-Manzano, Irene López-Rodríguez, Lev Guzmán-Vargas.  Plos one 17 (9), e0274617,2022

4. Conflict Dynamics in Scale-Free Networks with Degree Correlations and Hierarchical Structure, E Jacobo-Villegas, B Obregón-Quintana, L Guzmán-Vargas and L. S. Liebovitch, Entropy 24 (11), 1571, 2022

5. Generalization of Higuchi's fractal dimension for multifractal analysis of time series with limited length, Carlos Carrizales-Velazquez, Reik V Donner, Lev Guzmán-Vargas. Nonlinear Dynamics volume 108, pages 417–431 (2022)

6. The Complex Structure of the Pharmacological Drug–Disease Network. Irene López-Rodríguez, Cesár F Reyes-Manzano, Ariel Guzmán-Vargas, Lev Guzmán-Vargas, Entropy 23 (9), 1139, 2021

7. Comparing phonological and orthographic networks: A multiplex analysis, P Lara-Martínez, B Obregón-Quintana, CF Reyes-Manzano, I. López-Rodríguez, L. Guzmán-Vargas, Plos one 16 (2), e0245263, 2021

8. Drugs, Active Ingredients and Diseases Database in Spanish. Augmenting the Resources for Analyses on Drug–Illness Interactions, I López-Rodríguez, CF Reyes-Manzano, I Reyes-Ramírez, T. Contreras-Uribe, L. Guzmán-Vargas, Data 6 (1), 3, 2021

9. IY Fernández-Rosales, F Angulo-Brown, E Pérez-Campuzano, Lev Guzmán-Vargas. Distance distributions of human settlements,  Chaos Solitons & Fractals 136, 109808, 2020. 

10. Hernández-Casildo, M del Castillo-Mussot, E Hernández-Ramirez, L Guzmán-Vargas. Correlating international inflowing and outflowing remittances and migrants. International Journal of Modern Physics C (IJMPC), 31,03, 1-10, 2020

11. A Comparative Study of Geoelectric Signals Possibly Associated with the Occurrence of Two Ms> 7 EQs in the South Pacific Coast of Mexico. L Guzmán-Vargas, C Carrizales-Velazquez, I Reyes-Ramírez, A. De La Rosa, J. Fonseca, and F. Angulo-Brown. Entropy 21 (12), 1225, 2019

12. Network-based features for retinal fundus vessel structure analysis. P Amil, CF Reyes-Manzano, L Guzmán-Vargas, Irene Sendiña-Nadal, Cristina Masoller,  PloS one, 14(7): e0220132, 2019

13. Complexity analysis of sustainable peace: mathematical models and data science measurements. LS Liebovitch, PT Coleman, A Bechhofer, C Colon, J Donahue, Jaclyn Donahue, Chaim Eisenbach, Lev Guzmán-Vargas, Daniel Jacobs, Ammad Khan, Changlin Li, Daniel Maksumov, Javier Mucia, Michael Persaud, Mohamad Salimi, Launy Schweiger, Qiman Wang, New Journal of Physics 2019

14. Recurrence Networks in Natural Languages. E Baeza-Blancas, B Obregón-Quintana, C Hernández-Gómez, D. Gómez-Mléndez, L. S. Liebovitch, L. Guzmán-Vargas, Entropy 21 (5), 517

15. Critical synchronization and 1/f noise in inhibitory/excitatory rich-club neural networks . D. Aguilar-Velázquez and L. Guzmán-Vargas. Nat. Scientific Reports, 9 (1), 1258, 2019 

16. Multifractality of Pseudo-Velocities and Seismic Quiescence Associated with the Tehuantepec M8. 2 EQ. C Carrizales-Velazquez, A Rudolf-Navarro, I Reyes-Ramírez, Alejandro Muñoz-Diosdado, Lev Guzmán-Vargas, Fernando Angulo-Brown, Entropy 20 (12), 96

17. Multifractal analysis reveals decreased nonlinearity and stronger anticorrelations in heart period fluctuations of fibromyalgia patients. CF Reyes-Manzano, C Lerma, JC Echevarria, M Martinez Lavin, L. Martínez,O. Infante, L. Guzmán-Vargas, Frontiers in Physiology 9, 1118, 2018

18. On entropy research analysis: cross-disciplinary knowledge transfer. R Basurto-Flores, L Guzmán-Vargas, S Velasco, A Medina, A. Calvo-Hernández, Scientometrics, 1-17, 2018

19. Design and implementation of a robotic active solar distiller based on a Fresnel concentrator and a photovoltaic system. Energy Conversion and Management,  S.I. Palomino-Resendiz , D.A. Flores-Hernández, N. Lozada-Castillo, L. Guzmán-Vargas and A. Luviano-Juárez, 166, 637–647 (2018)

20. Symbolic Analysis of the Cycle-to-Cycle Variability of a Gasoline–Hydrogen Fueled Spark Engine. I Reyes-Ramírez, SD Martínez-Boggio, PL Curto-Risso,Alejandro Medina, Antonio Calvo Hernández, Lev Guzmán-Vargas, Energies 11 (4), 968 (2018)

21. Synchronization and 1/f signals in interacting small-world networks. D Aguilar-Velázquez, L Guzmán-Vargas, Chaos, Solitons & Fractals 104, 418-425 (2017)

22. Evaluating the Irregularity of Natural Languages C Hernández-Gómez, R Basurto-Flores, B Obregón-Quintana, L Guzmán-Vargas, Entropy 19 (10), 521 (2017)

23. A point process analysis of electrogastric variability. T. J. Contreras-Uribe, LI Garay-Jiménez, L Guzmán-Vargas Chaos, Solitons & Fractals 94, 16-22 (2016)

24. Characteristics of the oil transport network in the South of Mexico.R Juárez, IY Fernández, L Guzmán (2017), Journal of Physics: Conf. Ser. 792 (1), 012096

25. A comparative study of power law scaling in large word-length sequences. J Quezada-González, D Aguilar-Velázquez, T Contreras-Uribe, L. Guzmán-Vargas. Journal of Physics: Conf. Ser. 792 (1), 012076 (2017).

26. The dynamic consequences of cooperation and competition in small-world networks. I. Fernández-Rosales, Larry S. Liebovitch, L. Guzmán-Vargas. PLoS ONE 10(4): e0126234. doi: 10.1371/journal.pone.0126234 (2015) 

27. Word-Length Correlations and Memory in Large Texts: A Visibility Network Analysis L. Guzmán-Vargas, B. Obregón, Daniel Aguilar, R. Hernández-Pérez and L. S. Liebovitch. Entropy 17(11), 7798-7810 (2015)

28. Effects of direct fuel injection strategies on cycle-by-cycle variability in a gasoline HCCI engine: sample entropy analysis. Jacek Hunicz, Alejandro Medina , Grzegorz Litak, Pedro L. Curto-Risso, Lev Guzmán-Vargas. Entropy, 17(2), 539-559 (2015).

29. City-size distributions in Mexico along the 20th century. E. Pérez-Campuzano, Lev Guzmán-Vargas, F. Angulo-Brown.  Chaos, Solitons & Fractals, Volume 73, Pages 64–70 (2015)

30. The maximum power efficiency 1 −√τ : Research, education, and bibliometric relevance. A. Calvo-Hernández, J.M.M. Roco, A. Medina, and S. Velasco and L. Guzmán-Vargas. European Physical Journal - Special Topics, 224 (5), 809-823 (2015)

31. Crossover scaling evaluation in mixed correlated signals by means of Detrended Fluctuation Analysis. C. R. Martínez-García, I Reyes-Ramírez, F Angulo-Brown, Lev Guzmán-Vargas. Journal of Physics: Conference Series 582 (1), 012062 (2015)

32. Global Stability Analysis of a Curzon–Ahlborn Heat Engine under Different Regimes of Performance Israel Reyes-Ramírez, Marco A Barranco-Jiménez, Adolfo Rojas-Pacheco, Lev Guzmán-Vargas. Entropy 16 (11), 579, 6-5809 (2014)

33. Evaluating the transport in small-world and scale-free networks. R. Juárez, B. Obregón, R. Hernández-Pérez, I. Reyes-Ramírez, L. Guzmán-Vargas. Chaos, Solitons & Fractals 69, 100-106 (2014)

34. Global stability analysis of a Curzon–Ahlborn heat engine using the Lyapunov method .I Reyes-Ramírez, MA Barranco-Jiménez, A Rojas-Pacheco, L. Guzmán-Vargas. Physica A, Vol. 399, issue C,  98-105 (2014)

35. Magnitude earthquake time series: Scaling properties of visibility graphs . B. Aguilar and L. Guzmán-Vargas. European Physical Journal B 86:454 (2013).

36. On excursion increments in heartbeat dynamics. L. Guzmán-Vargas, I. Reyes-Ramírez, R. Hernández-Pérez. Chaos, Solitons & Fractals, 52, 1-7 (2013)

37. Time-delay effects on dynamics of a two actor conflict model. A. Rojas-Pacheco, B. Obregón, L. S. Liebovitch and L. Guzmán-Vargas.  Physica A, Vol. 392, 3, 458–467 (2013).

38. Fluctuations in the energetic properties of a spark-ignition engine model with variability. P. Curto-Risso, A. Medina, A. C. Hernández, L. Guzmán-Vargas and F. Angulo-Brown.  Entropy 15(8), 3277-3296 (2013)

39. Algunas propiedades de transporte en redes de mundo-pequeño y libres de escala  B. Obregón, R. Hernández-Pérez, L. Guzmán-Vargas.  Rev. Mex. Fis. S 58 (1) 69-75 (2012)

40. Differences in the stability of the heart interbeat rate during wake and sleep periods. R. Hernández-Pérez, L. Guzmán-Vargas , I. Reyes-Ramírez and F. Angulo-Brown. Fluctuation and Noise Letters, (2011).

41. Local Stability Analysis of a Thermo-Economic Model of a Chambadal-Novikov-Curzon-Ahlborn Heat Engine . Marco A. Barranco-Jiménez, Ricardo T. Páez-Hernández, Israel Reyes-Ramírez and L. Guzmán-Vargas. Entropy 13(9),1584-1594, (2011).

42. Scaling differences of heartbeat excursions between wake and sleep periods. L. Guzmán-Vargas,I. Reyes-Ramírez, R. Hernández-Pérez and F. Angulo-Brown. Methods in Enzimology (Computer Methods, C) , 487,409-428, (2011).

43. Evolution in time and scales of the stability of heart interbeat rate. R. Hernández-Pérez, L. Guzmán-Vargas, I. Reyes-Ramírez and F. Angulo-Brown. Europhysics Letters 92, 68006 (2010)

44. Statistical Properties and Memory of Excursions in Heartbeat Intervals. I. Reyes-Ramírez, L. Guzmán-Vargas, R. Hernández-Pérez. Computing in Cardiology 37: 963 ­ 966. 2010.

45. On cycle-to-cycle heat release variations in a simulated spark ignition heat engine. P. L. Curto-Risso, A. Medina, A. Calvo Hernández, L. Guzmán-Vargas and F. Angulo-Brown. Applied Energy, 88 , 1557-1567 2010.

46. Monofractal and multifractal analysis of simulated heat release fluctuations in a spark ignition heat engine.  P. L. Curto-Risso, A. Medina, A. Calvo Hernández, L. Guzmán-Vargas and F. Angulo-Brown. Physica A , (2010).

47. Scaling properties of excursions in heartbeat dynamics . I. Reyes-Ramírez and L. Guzmán-Vargas. Europhysics Letters,89 , 38008 (2010).

48. Pattern synchrony in electrical signals related to earthquake activity . R. Hernández-Pérez, L. Guzmán-Vargas, A. Ramírez-Rojas and F. Angulo-Brown. Physica A, 389 , 6 , 1239-1252 (2010)

49. Correlations and variabiliy in electrical signals related to earthquake activity. L. Guzmán-Vargas , A. Ramírez-Rojas, R. Hernández-Pérez and F. Angulo-Brown. Physica A,388 , 4218-4228, (2009).

50. Statistical features of seismoelectric signals prior to M7.4 Guerrero-Oaxaca earthquake (México). A. Ramírez-Rojas, E. L. Flores-Márquez, L. Guzmán-Vargas, G. Gálvez-Coyt, L. Telesca and F. Angulo-Brown. Natural Hazards and Earth System Sciences, Vol. 8 , No. 5, (2008).

51. Multiscale entropy analysis of electroseismic time serie. L. Guzmán-Vargas, A. Ramírez-Rojas and F. Angulo-Brown. Natural Hazards and Earth System Sciences, 8 , 855-860, (2008).

52. Comparative analysis of the complex transcription-factor gene regulatory networks of E. coli and S. cerevisiae. L. Guzmán-Vargas, M. Santillan. BMC Systems  Biology 2 :13 (2008).

53. Sliding size distribution in a simple spring-block system with asperities.  C. A. Vargas, E. Basurto, L. Guzmán-Vargas and F. Angulo-Brown. Physica A, Vol. 387 , 3137-3144, (2008).

54. A comparison of ground geolectric activity between three regions of different level of seismicity.  A. Ramírez-Rojas, E. L. Flores-Marquez, L. Guzmán-Vargas, J. Marquez-Cruz, C. G. Pavia-Miller and F. Angulo-Brown. Natural Hazards and Earth System Sciences, 7 , 591 (2007.

55. Complex fluctuations and robustness in stylized signalling networks. A. Díaz-Guilera, A. A. Moreira, L. Guzmán and L. A. N. Amaral. J. Stat. Mech. 2007, P01013.

56. Local stability analysis of an endoreversible engine working in an ecological regime. J. C. Chimal, I. Reyes and L.Guzmán-Vargas. Open Systems and Information Dynamics, 14 :411-424, (2007)

57. Small-world topology and memory effects on decision times in opinion dynamics. L. Guzmán-Vargas and R. Hernández-Pérez. Physica A Vol. 372 , (2006), 326-332

58. Some crossover behavior in heart interbeat and electroseismic time series. A. Muñoz-Diosdado, L. Guzmán-Vargas A. Ramírez-Rojas, J. L. Del Río and F. Angulo-Brown. Fractals Vol. 13, No.4 (2005), 253-263.

59. The effect of heat transfer laws and thermal conductances on the stability of an endoreversible engine. L. Guzmán-Vargas I. Reyes-Ramírez and N. Sánchez. J. Phys. D. Appl. Phys 38 (2005) 1282-1291.

60. Influence of the loss of time-constants repertoire in pathologic heartbeat dynamics. L. Guzmán-Vargas A. Muñoz-Diosdado and F. Angulo-Brown. Physica A 348 (2005) 304-316.

61. On fractal analysis of cardiac interbeat time series. L. Guzmán-Vargas, E. Calleja-Quevedo and F. Angulo-Brown. Am. Institute of Physics Proceedings, Vol. 682 , pp. 226-231 (2003)

62. Simple model of the aging effect in heart interbeat time series. L. Guzmán-Vargas and F. Angulo-Brown. Physical Review E, 67 , 052901 (2003). Also selected for Virtual Journal of Biological Physics Research (May 15, 2003)..

63. Fractal changes in heart rate dynamics with aging and heart failure. L. Guzmán-Vargas, E. Calleja-Quevedo and F. Angulo-Brown. Fluctuation and Noise Letters, Vol. 3 , No. 1, 2003, L81-L87.

64. Fractal methods and cardiac interbeat time series . L. Guzmán-Vargas, E. Calleja-Quevedo and F. Angulo-Brown. Rev. Mex. Fis. Vol. 51 , Sup. 2, 122-127, 2005.

65. Efficiency of simple quantum engines: The Joule-Brayton and Otto Cycles. L. Guzmán-Vargas, V. Granados and R. D. Mota. Am. Institute of Physics, Vol. 643 p. 291-296, 2002

66. A dissipative Joule-Brayton cycle model . L. Guzmán-Vargas and F. Angulo-Brown.Rev. Mex. Fis. 44 (6)619-623, 1998.

67. 
    

Book chapters

1. Quasi-Dimensional Simulation of Spark Ignition Engines: From Thermodynamic Optimization to Cyclic Variability. A Medina, PL Curto-Risso, AC Hernández, L Guzmán-Vargas, F Angulo-Brown, AK Sen, Springer Publishing Company, 2014

2. Some Fractal Properties of Human Heartbeat Dynamics. . "Statistical Mechanics Research". L. Guzmán-Vargas, A. Muñoz-Diosdado, E. Calleja-Quevedo and F. Angulo-Brown. Editors: Byung-Soo Kim, Nova Publishers, 2008.

3. Variabilidad del interlatido cardiaco: un análisis basado en técnicas de la dinámica no lineal. L. Guzmán Vargas, A. Muñoz Diosdado, E. Calleja Quevedo, G. Gálvez Coyt and F. Angulo Brown. La Física Biológica en México: TEMAS SELECTOS 2, Editores: L. García-Colín Scherer, L. Dagdug, M. Picquart, E. Vázquez, El Colegio Nacional,2008.

4. El grado de multifractalidad y la asimetría del espectro de singularidades para el análisis de series de interlatido cardiaco. A. Muñoz Diosdado, J. L Del Río Correa, G. Gálvez Coyt, F. Angulo Brown, L. Guzmán Vargas. La Física Biológica en México: TEMAS SELECTOS 2, Editores: L. García-Colín Scherer, L. Dagdug, M. Picquart, E. Vázquez, El Colegio Nacional, 2008

Other publications

Book chapters

1. Quasi-Dimensional Simulation of Spark Ignition Engines: From Thermodynamic Optimization to Cyclic Variability

   1. A Medina, PL Curto-Risso, AC Hernández, L Guzmán-Vargas, F Angulo-Brown, AK Sen

   2. Springer Publishing Company, 2014

1. Some complexity studies of electroseismic signals from Mexican subduction zone. 

   1. L. Guzmán-Vargas, A. Ramírez-Rojas, R. Hernández-Pérez and F. Angulo-Brown. Earthquake Research and Analysis/ Book 1 ,Intech Publishers 2011.

1. Características y dinámica de redes complejas. .

   1. "Tendencias actuales de la física en México". L. Guzmán Vargas. Ed.Instituto Politécnico Nacional, México, 2008

1. Un estudio dinámico no-lineal de series de tiempo cardiacas. 

   1. L. Guzmán Vargas,PhD Thesis, 2002.