Peter A. Hogan is Emeritus Professor at University College Dublin. He received his B.Sc., M.Sc., Ph.D. and D.Sc. degrees from The National University of Ireland and is a member of the Royal Irish Academy. He was a postdoctoral fellow in the School of Theoretical Physics, Dublin Institute for Advanced Studies, the Centre for Relativity, University of Texas at Austin and the School of Mathematics, Trinity College Dublin. His publications of more than 100 papers and four monographs are in Electrodynamics, Yang-Mills gauge theory from the fibre bundle point of view and general relativity (equations of motion, gravitational waves, exact solutions of Einstein's equations and cosmology). He has published research carried out in Japan, South Africa, France, Poland and the U.S. He co-authored the book Frontiers in General Relativity (Springer, 2021).Dirk Puetzfeld is a researcher at Bremen University (Germany). He received his Dipl. Phys. andDr. rer. nat. degrees from University of Cologne (Germany), both in theoretical physics. He was an assistant professor at Tohoku University (Japan), and a postdoctoral fellow at the Max-Planck-Institute for Gravitational Physics (Germany), University of Oslo (Norway), Iowa State University (USA). His main research interests include gravitational physics, cosmology, relativistic geodesy, as well as computational methods. His publication record encompasses over 50 papers in international journals as well as three books. He co-authored the book Frontiers in General Relativity (Springer, 2021).

“The book is well written and undoubtedly in touch with the current research on gravitational waves. Considering the addressed topic, it surely represents a concise, useful tool for students and researchers in the field of general relativity and gravitational radiation.” (Francesco Sorge, Mathematical Reviews, February, 2024)

• Introduction.- Plane Fronted Gravity Waves.- Plane Fronted Electromagnetic Waves.- ‘Spherical’ Gravity Waves.- Plane Fronted Limit of ‘Spherical’ Waves.- Plane Fronted Waves with a Cosmological Constant.- Gravity Wave Perturbations in Cosmology.- Exact Gravity Waves in Cosmology.- A Intersections of H+ 3 with Hyperplanes.- B Equations Satisfied by Gauge Invariant Variables.- Index.

Peter A. Hogan is Emeritus Professor at University College Dublin. He received his B.Sc., M.Sc., Ph.D. and D.Sc. degrees from The National University of Ireland and is a member of the Royal Irish Academy. He was a postdoctoral fellow in the School of Theoretical Physics, Dublin Institute for Advanced Studies, the Centre for Relativity, University of Texas at Austin and the School of Mathematics, Trinity College Dublin. His publications of more than 100 papers and four monographs are in Electrodynamics, Yang-Mills gauge theory from the fibre bundle point of view and general relativity (equations of motion, gravitational waves, exact solutions of Einstein's equations and cosmology). He has published research carried out in Japan, South Africa, France, Poland and the U.S. He co-authored the book Frontiers in General Relativity (Springer, 2021).Dirk Puetzfeld is a researcher at Bremen University (Germany). He received his Dipl. Phys. andDr. rer. nat. degrees from University of Cologne (Germany), both in theoretical physics. He was an assistant professor at Tohoku University (Japan), and a postdoctoral fellow at the Max-Planck-Institute for Gravitational Physics (Germany), University of Oslo (Norway), Iowa State University (USA). His main research interests include gravitational physics, cosmology, relativistic geodesy, as well as computational methods. His publication record encompasses over 50 papers in international journals as well as three books. He co-authored the book Frontiers in General Relativity (Springer, 2021).

“The book is well written and undoubtedly in touch with the current research on gravitational waves. Considering the addressed topic, it surely represents a concise, useful tool for students and researchers in the field of general relativity and gravitational radiation.” (Francesco Sorge, Mathematical Reviews, February, 2024)

• Introduction.- Plane Fronted Gravity Waves.- Plane Fronted Electromagnetic Waves.- ‘Spherical’ Gravity Waves.- Plane Fronted Limit of ‘Spherical’ Waves.- Plane Fronted Waves with a Cosmological Constant.- Gravity Wave Perturbations in Cosmology.- Exact Gravity Waves in Cosmology.- A Intersections of H+ 3 with Hyperplanes.- B Equations Satisfied by Gauge Invariant Variables.- Index.

Peter A. Hogan is Emeritus Professor at University College Dublin. He received his B.Sc., M.Sc., Ph.D. and D.Sc. degrees from The National University of Ireland and is a member of the Royal Irish Academy. He was a postdoctoral fellow in the School of Theoretical Physics, Dublin Institute for Advanced Studies, the Centre for Relativity, University of Texas at Austin and the School of Mathematics, Trinity College Dublin. His publications of more than 100 papers and four monographs are in Electrodynamics, Yang-Mills gauge theory from the fibre bundle point of view and general relativity (equations of motion, gravitational waves, exact solutions of Einstein's equations and cosmology). He has published research carried out in Japan, South Africa, France, Poland and the U.S. He co-authored the book Frontiers in General Relativity (Springer, 2021).Dirk Puetzfeld is a researcher at Bremen University (Germany). He received his Dipl. Phys. andDr. rer. nat. degrees from University of Cologne (Germany), both in theoretical physics. He was an assistant professor at Tohoku University (Japan), and a postdoctoral fellow at the Max-Planck-Institute for Gravitational Physics (Germany), University of Oslo (Norway), Iowa State University (USA). His main research interests include gravitational physics, cosmology, relativistic geodesy, as well as computational methods. His publication record encompasses over 50 papers in international journals as well as three books. He co-authored the book Frontiers in General Relativity (Springer, 2021).

“The book is well written and undoubtedly in touch with the current research on gravitational waves. Considering the addressed topic, it surely represents a concise, useful tool for students and researchers in the field of general relativity and gravitational radiation.” (Francesco Sorge, Mathematical Reviews, February, 2024)

• Introduction.- Plane Fronted Gravity Waves.- Plane Fronted Electromagnetic Waves.- ‘Spherical’ Gravity Waves.- Plane Fronted Limit of ‘Spherical’ Waves.- Plane Fronted Waves with a Cosmological Constant.- Gravity Wave Perturbations in Cosmology.- Exact Gravity Waves in Cosmology.- A Intersections of H+ 3 with Hyperplanes.- B Equations Satisfied by Gauge Invariant Variables.- Index.